Change Log

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3.29.2 - 2021-06-08

Bugfixes

Bump orange-canvas-core minimum version requirement (#5472)
owpca: fix component selection when dragging selection line (#5469)
Save File when workflow basedir is an empty string (#5459)

3.29.1 - 2021-05-31

3.29.0 - 2021-05-28

Enhancements

Scatter plot: Bring discrete attributes functionality back (#5440)
Caching data delegate (#5296)
textimport: Mark encoding errors in the preview (#5438)
DBSCAN: Optional normalization (#5428)
Automated and better summaries (#5308)
Transpose: Offload work onto separate thread, remove redundant instance (#5314)
Domain transformations in batches for less memory use (#5218)
Feature Statistics: Add median (#5325)
New widget: Aggregate Columns (#5256)

Bugfixes

Outlier detection: keep instance ids, make thread safe (#5427)
UrlReader: Support urls with special characters (#5412)
Speed-up slow table_to_frame (#5413)
Line Plot: Single instance input fix (#5408)
Pivot: Assign dataset name to output tables (#5404)
setup.py: Exclude benchmark directory from the install (#5392)
Errors when converting negative timestamps on Windows (#5388)
Nomogram: Retain original compute_value (#5382)
Radviz VizRank: Implement on_selection_changed (#5338)

3.28.0 - 2021-03-05

Enhancements

Bar Plot: Improve "Group by" visualization (#5301)
Violin Plot: New widget (#5252)
Test and Score: Copy selected rows to clipboard (#5203)
Projections: Allow transparent subset (#5141)
Gradient Boosting: New widget (#5160)
Impute: Allow setting a default value for all numeric and time variables (#5102)
Distribution: Show equal bar widths on unique-valued bins (#5139)
Implement proper Lift curve; keep Cumulative gains as an option (#5075)
Create Instance: New widget (#5033)

Bugfixes

Calibration model: Work with numpy data (#5159)
Rank: Switch to manual selection on deselect (#5271)
Create Class: multiple patterns for a class value (#5283)
Test and Score: Fix stratification warnings (#5281)
Predictions: Fix crash when clicking on empty left area (#5222)
Distribution: vectorize variance, speeds up normalization (#5230)
owimpute: Make default_numeric locale independant (#5209)
Pivot: Display time variable in time format (#5212)
OWScatterPlotBase: Ignore 'Other' when showing color regions (#5214)
Fix performance regression in scatterplot (#5206)
Pivot: Fix table for categorical variables (#5193)
Distance Matrix: Fix freeze with large selections (#5176)
Xls reader: Error as missing value (#5192)
owdataset: Do not capture self in closure (#5198)
ROC shows all points, including the last (#5138)
Pivot: Output date for group by table (#5202)
Enable classification tests (#5168)
Data Table: Fix freeze with large selections (#5164)
OWImpute: Preserve default method setting (#5181)
AdaBoost: Set maximum number of estimators to 10000 (#5165)
Feature Statistics: Error in time variable display (#5152)
owpythonscript: Use signal id as is (#5147)
SqlTable use empty string instead of None for StringVariable (#5120)
Pivot: Handle big dataset (#5104)
SQL: Fix the issue with database collation setting when retrieving column values (#5089)
impute: Remove class vars from input data for ReplaceUnknownsModel (#5083)
Edit Domain: Preserve renames on categories merge (#5072)
CSV File Import: sort discrete values naturally (#5041)

3.27.1 - 2020-10-23

Bugfixes

customizableplot.available_font_families: Fix for non-existent default family (#5037)
Raise canvas-core version to fix some problems with Qt 5.9 (#5045)

3.27.0 - 2020-10-09

Enhancements

Table: Re-add info box about data properties (#5011)
Rank widget computation in a separate thread (#4908)
Neighbors: improve exclusion of references, checkbox to (un)limit output data (#4997)
Bar Plot: New widget (#4923)
Replace listViews with searchable listViews (#4924)
Add an option to set intercept in linear regression to 0 (#4958)
CSV File Import: Add support for explicit workflow relative paths (#4872)
OWColor: Saving and loading color schemata (#4977)
Distributions: Add sorting by category size (#4959)
Proxy support for embeddings (#4953)
Discretize: Manual cut points entry (#4929)
Predictions: Allow selecting a subset of rows (#4871)
Projection plots: Customize labels (#4828)
get_unique_names: Handle more independent names (#4866)
Edit Domain: Add option to unlink variable from source variable (#4863)
Louvain Clustering: Add cosine similarity (#4864)

Bugfixes

Fix line plot's send_report (#5018)
Scatter Plot: fix unzoom with density plot (#5004)
ownomogram: Fix wrapped C++ obj error (#5005)
Fix slicing in from_table (#4963)
Edit Domain: Multiple item rename/merge (#4949)
ProjectionWidgetMixinTests: set shape attribute only when discrete var available (#4946)
Fix variables equality and hashes (#4957)
Fix wrong assert in heatmap (#4955)
Edit Domain (and perhaps other widgets) could cause missing data later in the workflow (#4922)
OWScatterPlotBase: Reset view before labels update (#4907)
owcsvimport: Fix a type error in _open for zip archive (#4921)
Line Plot: Reset axis ticks on data change (#4873)
MDS: Move lines when points are jittered (#4920)
owcsvimport: Handle decimal and thousand separator (#4915)
Select Rows: fix fail when time variable in metas (#4912)
Re-add TupleList to DiscreteVariable (#4879)
concurrent: Use a workaround for QObject wrapper deletion (#4635)
normalize: Adjust number_of_decimals after scaling (#4779)

3.26.0 - 2020-06-12

Enhancements

main: Log to main window output view (#4842)
Feature statistics report (#4812)
Distributions: change Histogram Data output (#4832)
owtable: output sorted data (#4644)
Add an option to Concatenate to merge columns with different formulae (#4831)
CSV Import: guess data types (#4838)
HeatMap: Allow setting the center when using diverging palettes (#4809)
Heatmap: Split columns, Column annotations (#4703)
Sort values naturally when reading files (#4793)
Color widget: Add reset button (#4718)
Gradient selection/parameters widget (#4596)
Select Rows: Allow partial context matches (#4740)
Edit Domain: Add an option to change the output table name (#4722)
ApplyDomain: data info displayed in the status bar (#4611)
BoxPlot: data info displayed in the status bar (#4626)
LinePlot: data info displayed in the status bar (#4633)
MosaicDisplay: data info displayed in the status bar (#4634)
CreateClass: data info displayed in the status bar (#4625)

Bugfixes

Variable: Fix cases when equal variables had different hashes (#4843)
OWBoxPlot: Fix wrong labels position and ordering for values with no items (#4829)
Select Rows: Fix saving meta variables in context (#4830)
Select Columns: Fix attributes sorting (#4827)
Fix and update Softmax regression learner (#4767)
PCA: fix subsets with the "Data" output (#4811)
OWContinuize: Fix treatment of continuous features. (#4806)
Select Rows: Fix incorrectly stored values in settings (#4798)
Fix colors for discrete variables with >256 values (#4803)
Unique domain checks (#4760)
owheatmap: Use 'is' instead of 'eq' for column id comparison (#4788)
BoxPlot: Fix invalid data range (#4769)
graphicstextlist: Fix size/spacing adjustment for single item (#4777)
Feature Statistics: Fix wrong or even crashing selections (#4741)
UrlReader: shorten TempFile extension (#4747)
Embedder: catch machine id setting type error (#4675)
relief: Fix contingency (de)allocation (#4745)
Test and Score: Improve data errors (#4738)
PythagoreanTree: Fix crushing when number of classes decreases (#4743)
Fix report in Predictions (#4709)
owheatmap: Handle all N/A column for color annotation (#4742)
Distributions widget's legend: Remove the square from sigma in normal and Rayleigh (#4739)
Several fixes in learners/models (#4655)
Heatmap: Split by missing values (#4686)
Owpaintdata, owpivot: ensure unique domain (#4578)
Pythagorantrees/forests: change context handler (#4656)
Color: Fix renaming of variables (#4669)
Heatmap: Sticky footer (#4610)
SOM: fix colors for numeric variables (#4660)
Fixes for deprecations in 3.26, and for changed behaviour of file dialog (#4643)

3.25.1 - 2020-05-22

Bugfixes

Fix compatibility with scikit-learn 0.23 (#4768)

3.25.0 - 2020-04-10

Enhancements

Searchable combo boxes in all evaluate widgets (#4564)
Searchable combo boxes in all visualize widgets (#4563)
Searchable combo boxes in all unsupervised widgets (#4565)
Projections keep colors after merging values (#4577)
Distance Map: Add a color map legend (#4593)
Orange.misc.environ config (#4576)
Searchable combo boxes in all data widgets (#4562)
Fix printing values with too few decimals (#4575)
Scatter Plot: Replace combo box with search combo box (#4447)
Save widgets: Store paths relative to workflow directory (#4532)
Edit Domain: Option to merge less frequent values (#4477)
Load Model: Use paths relative to workflow file (#4534)
Ignore missing values in density plots of projections (#4525)
Impose a sensible z-order to points in projections (#4504)
Use Github actions as a new CI system. (#4482)
Testing with Tox (#4481)
Add row side color annotations (#4443)
Outliers: Offload work onto separate thread (#4412)
OWScatterPlot: axis displays time specific labels for time variable (#4434)
Predictions: Update splitter on resize (#4433)
Import openTSNE lazily for faster loading of Orange (#4424)
Silhouette Plot: Always output scores (#4423)
Heatmap: Tighter layout (#4390)
Reorganize continuous palettes (#4305)
Outliers: Save model into compute_value (#4372)
Allow concurrent transformation of tables into new domains (#4363)
Test & Score: Add comparison of models (#4261)
Outliers: Widget upgrade (#4338)
Concatenate: data info displayed in the status bar (#4617)
Distributions: data info displayed in the status bar (#4627)
MergeData: data info displayed in the status bar (#4592)
Neighbors: data info displayed in the status bar (#4612)
SelectByDataIndex: data info displayed in the status bar (#4595)
OWOutliers: Data info displayed in the status bar (#4547)
OWDataProjectionWidget: Upgrade status bar data info (#4544)
Heatmap: Restore ability to cluster larger datasets (#4290)
OWImpute: Data info displayed in the status bar (#4499)
OWFile: Data info displayed in the status bar (#4506)
OWCSVImport: Data info displayed in the status bar (#4509)
OWDatasets: Data info displayed in the status bar (#4512)
OWDataInfo: Data info displayed in the status bar (#4513)
OWSave: Data info displayed in the status bar (#4505)
OWPurgeDomain: Data info displayed in the status bar (#4502)
OWColor: Data info displayed in the status bar (#4501)
OWRandomize: Data info displayed in the status bar (#4498)
OWPivotTable: Data info displayed in the status bar (#4472)
OWContinuize: Data info displayed in the status bar (#4494)
OWFeatureConstructor: Data info displayed in the status bar (#4496)
OWSelectRows: Data info displayed in the status bar (#4471)
OWDiscretize: Data info displayed in the status bar (#4495)
OWDataSampler: Data info displayed in the status bar (#4492)
OWRank: Data info displayed in the status bar (#4473)
OWContinuize: Provide the same options as in Preprocess/Normalize (#4466)
OWCorrelations: Data info displayed in the status bar (#4455)
OWEditDomain: Data info displayed in the status bar (#4456)
OWSelectColumns: Data info displayed in the status bar (#4454)
OWTranspose: Data info displayed in the status bar (#4413)
OWFeatureStatistics: data info displayed in the status bar (#4409)
OWPreporcess: Data info displayed in the status bar (#4414)

Bugfixes

Edit Domain: Fix merge values when missing data (#4636)
Table: Send correct output when switching between tabs (#4619)
Give created QGraphicsScenes a parent (#4352)
Fix dimensionality of probabilities from values (#4629)
PyTableModel: Allow wrapping empty lists (#4631)
Edit Domain: Improve Text/Categorical to Time conversion (#4601)
colorpalettes: fix BinnedContinuousPalette color assignments (#4609)
Classification models output correct shapes (#4602)
owtestandscore: Add cancelled tasks to dispose queue (#4615)
Nomogram: Fix crash on Python 3.8 (#4591)
K-means slowness (#4541)
Use new access token in cleanup workflow (#4590)
Detect duplicate names of variables in projections. (#4550)
Paint Data: Send correct output after clicking Reset to Input (#4551)
TimeVariable.parse: Do not modify _ISO_FORMATS (#4539)
heatmap: Ensure minimim size for color annotations (#4519)
OWEditDomain: Clear editor when data is disconnected (#4484)
ContinuousPalettesModel: Disable 'category' items via flags (#4538)
utils/image: Return early when image is empty (#4520)
graphicstextlist: Use integer font metrics again (#4524)
Concatenate: Fix wrong merging of categorical features (#4425)
Ensure unique var names in file (#4431)
Rank: Fix error with Random forest (#4457)
owhierclustering: Update the scene's sceneRect (#4459)
Venn Diagram is slow for big datasets (#4400)
Fix missing values after purging unused values (#4432)
File: Construct unique column names. (#4420)
format_summary_details: Replace 'features' with 'variables' (#4419)
Feature Constructor: Catch exceptions (#4401)
Continuize: Disable normalizing sparse data (#4379)
Python script serialization state (#4345)
DataProjectionWidget: Update combos on new data (#4405)
DataProjectionWidget: attribute Selected (#4393)
Fix slow clear/delete in 'Heat Map' 'Hier. Clustering', 'Distance Map' (#4365)
Explicitly define the protocol version for pickling (#4388)
Table.from_table: fix caching with reused ids (#4370)
FeatureStatistics: Convert selected rows to list (#4375)
Error message on tSNE with one variable (#4364)
Normalize: Integer variable representation (#4350)
DendrogramWidget: Remove event filters before removing items (#4361)
Round bhattacharayya (#4340)

3.24.1 - 2020-01-17

Enhancements

OWPreprocess: data info displayed in status bar (#4333)
OWDiscretize: data info displayed in status bar (#4331)
OWContinuize: data info displayed in status bar (#4327)
OWTranspose: data info displayed in status bar (#4295)
Silhouette plot: Accept distance matrix on input (#4313)
Preprocess: Add filtering by missing values (#4266)
Allow add-ons to register file format for the Save widget (#4302)
Box Plot: Add box for missing group values (#4292)
clustering/hierarchical: Use optimal_leaf_ordering from scipy (#4288)
Distributions: Add option to hide bars (#4301)

Bugfixes

ExcelReader: Speedup (#4339)
Nomogram: Adjust scale considering label width (#4329)
owhierarchicalclustering: Prescale dendrogram geometry (#4322)
table_to_frame: metas lost on conversion (#4259)
TestOWRank: Setting type should not be np.ndarray (#4315)
Distances: Fix restoring the cosine distance (#4311)
Fix saving workflows that contain a Rank widget (#4289)
utils/textimport: Remove 'exclusive' kwarg from QActionGroup call (#4298)

3.24.0 - 2019-12-20

Enhancements

Remove Variable.make (#3925)
OWTreeViewer: Bold predicted values in tree nodes (#4269)
Edit Domain: Reinterpret column type transforms (#4262)
OWTree: Add 'Classification Tree' keyword (#4283)
ConcurrentWidgetMixin: Cancel task on input change (#4219)
PCA: Add a signal with original data + pca (#4255)
Distances: Offload work to a separate thread (#4046)
Venn Diagram: Add relations over columns, simplify over rows (#4006)
Merge Data: Implement context settings (#4248)
Heatmap: Option to center color palette at 0 (#4218)
owheatmap: Add Split By combo box (#4234)
Heatmap: Allow labeling by any variable (#4209)
Test & Score Widget: Cancellability on input change. (#4079)
Boxplot no longer stretches bars when this is uninformative (#4176)
Box plot: Add 'order by importance' checkbox to groups (#4055)
Add pyproject.toml (#4179)
Add remove sparse features preprocessor (#4093)
Output to OWCorrespondence (#4180)
macOS: Installer python version (#4130)
OWBoxPlot: Show missing values (#4135)
Neighbors: Data info displayed in status bar (#4157)
Preprocess: Tests update
Bhatthacharayya distance (#4111)
MergeData: Don't remove duplicate columns with different data (#4100)
Nice binning of time variables (Distributions, SOM) (#4123)
OWBaseSql: Base widget for connecting to a database (#4083)
k-Means: Add normalization checkbox (#4099)
Datasets: Remove control area (#4071)
Correlations: Include continuous class and meta variables (#4067)

Bugfixes

SQL: Save selected backend to settings (#4270)
ExcelReader: Migrate to openpyxl (#4279)
owcsvimport: Fix last/recent item serialization (#4272)
owselectcolumns: Fix move up/down type error (#4271)
Table: Keep pending selection if data is None (#4281)
Select Rows: Fix crash on changed variable type (#4254)
Louvain Clustering: Update graph output for compatibility with the new network add-on (#4258)
Merge data: Migrate settings (#4263)
Feature Statistics: Do not crash on empty domain (#4245)
File widget: fix name change (#4235)
Various fixes of box plot (#4231)
Fix guessing strategy for date and time variables (#4226)
owtable: Preserve tab order of updated inputs (#4225)
Feature Constructor: Compatibility with Python 3.8 (#4222)
File: Fix domain edit on no changes (#4232)
Normalizer: Retain attributes of attributes (#4217)
Hierarchical Clustering: Fix Annotations selection (#4214)
MDS: Place lines under points and labels (#4213)
Fix crash in Preprocess' Select Relevant Features when there are no features (#4207)
Louvain Clustering: fix setting to restore correctly (#4187)
SOM: Fix crash when clicking on empty canvas (#4177)
build-conda-installer.sh: Do not use python version from Miniconda (#4142)
Fix core dump in CI in SOM on sparse data (#4174)
ROC and LiftCurve: Store context settings (#4138)
Preprocess: Tests update
Normalize: Fix crash with nan column (#4125)
Warning for discrete variable with >100 values in OWFile (#4120)
owcsvimport: Make the progress update a direct connection (#4109)
Scatterplot: Disable vizrank when features on input (#4102)
Sieve: Disable vizrank when features on input (#4101)
Datetime conversion to string (#4098)
Self-Organizing Map: Fix restoring width (#4097)
K-means: Save Silhouette Scores selection (#4082)
OWTestLearners: Vertically align to center (#4095)
Model's data_to_model_domain supports sparse matrix (#4081)
Color widget failed after removing Variable.make (#4041)
Deprecated processEvents argument in Test&Score (#4047)
Merge data: Rename variables with duplicated names (#4076)
k-Means: Impute missing values (#4068)
Predictions: Handle discrete target with no values (#4066)
Fix storing and retrieving selection, and unconditional auto commit (#3957)
Scatterplot: Enable/disable vizrank button (#4016)
Correlations: Add progress bar, retain responsiveness (#4011)

3.23.1 - 2019-10-03

Bugfixes

Addons install with conda by default

3.23.0 - 2019-09-05

Enhancements

Pull YAML feed of notifications on startup, refactor notifications (#3933)
Widget for Self-Organizing Maps (#3928)
DBSCAN widget (#3917)
BoxPlot: Write the anova/t-test statistic onto the plot. (#3945)
Feature Constructor: Easier categorical features, allow creation of date/time, easier use of string data (#3936)
Merge data allows matching by multiple pairs of columns (#3919)
Sticky graphics header/footer views (#3930)
Shiny renewed widget Distributions (#3896)
Calibration plot (add performance curves) and a new Calibrated Learner widget (#3881)
Added Specificity as a new score in Test&Score (#3907)
Separate canvas and base widget (#3772)

Bugfixes

Conda Installer: Restore compatibility with latest anaconda python (#4004)
Scatter plot: Hidden variables fix (#3985)
Boxplot fix (#3983)
Heat map: Cannot cluster a single instance (#3980)
Test and Score: Sort numerically, not alphabetically (#3951)
OWProjectionWidgetBase: Update when domain is changed (#3946)
Change normalization to Scaling in SVM (#3898)
Restore usage tracking (#3921)
main: Fix widget settings directory path to clear (#3932)
Backcompatibility stubs (#3926)
OWNeighbours fix manual apply for some options (#3911)
Documentation links (#3897)
Update output on new input, even if auto commit is disabled (#3844)

3.22.0 - 2019-06-26

Enhancements

Unified clustering API (#3814)
t-SNE: Load openTSNE lazily" (#3894)
Replace popups with non-intrusive notifications (#3855)
CSV File Import widget (#3876)
t-SNE: Load openTSNE lazily (#3883)
Faster drawing in scatterplot (#3871)
Mosaic: Wrap legend (#3866)
Add conditions for all variables, or all numeric or textual variables (#3836)
Shared namespaces for PythonScript widgets (#3840)
Pivot: New widget (#3823)
Reset settings button (#3795)
WebviewWidget: expose JavaScript timeout limit (#3811)

Bugfixes

OWLinearProjection: limit axis (#3885)
Development readme (#3889)
OWRadviz: limit number of vars in RadvizVizRank (#3886)
OWCreateClass: Reuse variables created with same settings (#3868)
DistMatrix should return numpy datatypes (#3865)
OWRadviz: legible axis labels (#3809)
util: Fix bincount for object arrays (#3831)
condainstall: Fix env for running conda (#3843)
DBSCAN: Fix predicted labels (#3833)
Rare quickmenu crash fix (#3832)
OWWidget: Fix an error on mouse press when widget has no basic layout (#3821)
VerticalItemDelegate: Do not cut long vertical labels (#3803)
Minor improvements to pythagorean trees (#3777)
owmds: Fix test for error display/activate (#3813)

3.21.0 - 2019-05-20

Enhancements

Error Animations (#3788)
OWTSNE: Offload computation to separate thread (#3604)
OWDistributions: add cumulative distribution (#3766)
Edit Domain: Merge categorical values (#3725)
Transform: Values of primitive variables as feature names (#3721)
k-Means: Output centroid labels (#3695)
Support sparse Jaccard (#3657)
Offload work to a separate thread (#3627)
Correlations: Enhancements and fixes (#3660)
DomainEditor: Indicate changed variables with bold face font (#3576)
OWPythonScript: dropping and pasting of python scripts (#3611)
Improve Save widget's gui (#3545)
Table.from_numpy: Replace infs with nans. (#3624)
FDR: Calculate FDR using numpy (#3625)
Correlations: fixes and enhancements (#3591)
Preprocess: implement Select Relevant Feature's percentile (#3588)
Added keyboard shortcuts for Align & Freeze/Unfreeze (#3601)
PCA: Remove SVD & add normalization for sparse (#3581)
OwLouvain: Add normalize data checkbox to PCA preprocessing (#3573)
Use %g (including sci notation) if number of decimals is not set (#3574)
PCA: Preserve f32s & reduce memory footprint when computing means (#3582)

Bugfixes

OWLinePlot: legible bottom axis labels (#3768)
OWPythagorasTree: Enable node selection from forests with categorical variables. (#3775)
canvas/help: Fix a NameError in exception handler (#3759)
ProjectionWidgetTestMixin: Fix test_plot_once (#3738)
LinearProjectionVizRank: Add a necessary check (#3732)
stats: Fix statistics for primitive variables (#3722)
SQL Table: Restore selected table from settings (#3703)
OWAnchorProjectionWidget: Retain valid_data when reloading dataset (#3718)
Compatibility with Logitech's Smart Move (#3702)
OWTable: Don't set selection when there is no data on input (#3693)
Save Data: Remove extra file extensions (#3700)
owheatmap: Fix group label size policy (#3688)
Test & Score: hide warnings for hidden scores. (#3676)
VizRankDialog: Use extended thread pool to prevent segfaults (#3669)
Send usage statistics in a thread at startup (#3632)
Transform: Replace 'Preprocess' input with 'Template Data' input (#3673)
OWTable: Include attributes from meta attributes in header row labels (#3633)
OWSieve: Fix operators in tooltips (#3602)
MDS: Handle subset data (#3620)
migrate_context: widgets crash when migrating context without version (#3603)
Louvain clustering fails when Table or ndarray on input. (#3618)
Orange: add more informatino on missing compiled libraries (#3614)
LinearProjection: Disable LDA for less than three classes (#3615)
Orange restart dialogs: Improve wording (#3605)
OWDistances: Use only binary features for Jaccard distance (#3569)
ScatterplotGraph: Use mapToView instead of mapRectFromParent (#3571)
MDS: Fix crashes when feeding column distances (#3583)
Naive Bayes: Ignore existing classes in Laplacian smoothing (#3575)

3.20.1 - 2019-02-12

Enhancements

t-SNE: Add Normalize data checkbox (#3570)
Louvain show number of clusters (#3572)

Bugfixes

t-SNE speed-ups (#3592)
setup.py: Specify python-louvain version constraint (#3587)

3.20.0 - 2019-02-01

Enhancements

Naive Bayes: Implement predict, fix predict_storage (#3540)
OWTransform: add option to keep original data #3526 (#3549)
Implement better randomized PCA (#3532)
Scatterplot: Draw separate regression lines for colors; add orthonormal regression (#3518)
Edit Domain: Add support for ordered categorical variables (#3535)
Warn when data subset is unrelated to data (#3507)
Label subset (#3506)
OWLouvain: Ensure deterministic clustering (#3492)
t-SNE: Updates 2. (#3475)
Save Data: Support saving to Excel (#3453)
OWLinePlot: Move from prototypes to core (#3440)

Bugfixes

Warning about a window title without a placeholder (#3554)
PaintData: Fix control area width (#3560)
OWWidget: Remove wheelEvent reimplementation (#3557)
Data sets: Remove class from 'bupa' (#3556)
Neighbours: Show error when data and reference have different domain. (#3547)
Feature statistics fixes (#3480)
Removed header types and flags from .csv and .tab (#3427)
Python script widget: prevent data loss (#3529)
setup.cfg: Change the default for with-htmlhelp config option (#3536)
Don't add miniconda to path and register as system python (#3525)
OWDataProjectionWidget: check validity, fix sparse data reloading (#3485)
OWMergeData removes table meta attributes (#3474)
[MNT] Remove segfault in tests for building documentation (#3491)
OWFeatureStatistics: Fix scipy.stats.mode crash on sparse data (#3488)
OWDataProjectionWidget: Fix applying selection (#3466)

3.19.0 - 2018-12-11

Enhancements

Remove discrete attributes from scatter plot's axes (#3434)
OWScatterPlotBase: Animate dot resize (#3436)
Introduce stacking (#3291)
OWWidget: Input/output summary (#2556)
File: Provide percent missing values in Info box (#3305)
OWHierarchicalClustering: Use selection indices for selection restore (#3282)
Data Info display data set name (#3187)
tSNE: Output preprocessor (#3407)
Pythagorean Tree: children order (#3393)

Bugfixes

RemoveNaNColumns: Move to preprocess (#3464)
Scatterplot Vizrank: Don't use discrete variables (#3463)
canvas/widgetsscheme: Remove use of QObject.destroyed for logging (#3447)
OWFeatureStatistics: Don't attempt to sort when no data on input (#3449)
Rank: Fix crash on dataset with missing values (#3458)
Radviz: Enable projection for less than two selected variables (#3444)
t-SNE: Generate temporary projection data (#3454)
Scatter Plot: Always setup plot (#3450)
Mosaic: Always reset discrete_data (#3445)
Save Data: Reset writer upon changing the extension (#3437)
Scatter Plot: Replot when input Features (#3439)
build-conda-installer: Update the included Miniconda installer (#3429)
OWDataProjectionWidget: Consider tables with nan-s equal (#3435)
Projections: Retain embedding if non-relevant variables change (#3428)
PCA: Rename components to PC1, PC2, PC3, ... (#3423)

3.18.0 - 2018-11-13

Enhancements

tSNE: Move from single-cell to core (#3379)
Transform: Add new widget (#3346)
Correlations: Move from prototypes to core (#3362)
Install widget help files (#3345)
Feature Statistics: Move from prototypes to core (#3303)
Replace scikit-learn tSNE with faster implementation (#3192)
Select Columns: Enable filtering of used features (#3363)

Bugfixes

setup.py: Remove trailing slash from directory names in data_files (#3394)
condainstall.bat: Add conda.bat and activate.bat scripts again (#3389)
LearnerScorer: fix for preprocessed data (#3381)
Feature Statistics: Update outputs on new data (#3382)
python-framework.sh: Fix 'Current' symlink creation (#3373)
Fix wrong indices in tooltips in projection when some data was invalid (#3357)
Scatterplot's VizRank no longer crashes in presence of nonprimitive metas (#3347)
Predictions: Fix failure after failed predictor (#3337)
Louvain Clustering: Do not invalidate output on PCA slider change with apply disabled (#3339)
Use minimal keyring implementation for tests (#3359)
OWFreeViz: Fix optimization for data with missing values (#3358)

3.17.0 - 2018-10-26

Enhancements

OWSelectAttributes: Use input features (#3299)

Bugfixes

OWDataTable: reset selections on domain change (#3327)
owlouvainclustering: Fix race conditions (#3322)
Save data widget crash on no data (#3311)
OWWidget: Preserve widget geometry between hide/show events (#3304)
Fix OWWidget destruction (#3296)
OWWidget: Fix size hint propagation (#3253)

3.16.0 - 2018-09-14

Enhancements

ROC analysis: show thresholds (#3172)
Edit Domain: Record transformations (#3231)
Data Table: Enable deselection (#3189)
Empty helper pane message (#3210)
Matplotlib output for Scatter plot (#3134)
Scatterplot: indicate overlap of points. (#3177)
Selection of format and compression in save data widget (#3147)
OWBoxPlot: add option to sort discrete distributions by size (#3156)
Table: speed-up computation of basic stats of given columns. (#3166)
Canvas: 'Window Groups' continued (#3085)
Combo Box Search Filter (#3014)
Widget Insertion (#3179)

Bugfixes

Documentation fetching with redirects (#3248)
DiscreteVariable reconstruction (#3242)
io: Handle mismatched number of header/data values (#3237)
OWNeuralNetwork model pickling (#3230)
Variable: Prevent hashing of Values of DiscreteVariable. (#3217)

3.15.0 - 2018-08-06

Enhancements

Silhouette Plot: Add cosine distance (#3176)
Add pandas_compat.table_to_frame(tab) (#3180)
OWSelectByDataIndex: New widget (move from Prototypes) (#3181)
Make filters available in Orange.data namespace. (#3170)
Move Louvain clustering from prototypes to core (#3111)
OWWidget: Collapse/expand the widget on control area toggle (#3146)
Rank: SklScorer should use the faster SklImputer. (#3164)
RecentFiles: Check for missing file in workflow dir (#3064)
Smart widget suggestions (#3112)
Match Keywords in Widget Search (#3117)
io: Speedup write_data (#3115)
OWEditDomain: Enable reordering of discrete variables (#3119)

Bugfixes

oweditdomain: Fix an IndexError when all rows are deselected (#3183)
OWFreeViz: fix class density size (#3158)
OWBoxPlot: Fix empty continuous contingency check (#3165)
OWSql: enforce data download for non PostgreSQL databases (#3178)
owlouvainclustering: Make the task completion handler a single slot (#3182)
OWReport: disable save and print on empty report (#3175)
RemoveConstant: remove constant NaN features. (#3163)
utils/concurrent: Switch default thread pool (#3138)
OWBoxPlot: Fix quartiles computation (#3159)
OWBoxPlot: Plot axis labels and quartiles label layout (#3162)
[RFC] OWHeatMap: remove empty clusters from visualization (#3155)
report: Fix the number of hidden rows. (#3150)
[RFC] KMeans upgrade sparse support (#3140)
WebView fixes (#3148)
ci/appveyor: Update test dependencies (#3139)
Replace use of obsolete QStyle.standardPixmap (#3127)
BoxPlot: Hide groups with no instances (#3122)

3.14.0 - 2018-07-04

Enhancements

MergeData: add autocommit button (#3091)
Canvas: Window Groups (#3066)
Save data with compression (#3047)
Neural network widget that works in a separate thread (#2958)
Display Widgets on Top option (#3038)
Implement multi window editing (#2820)
Data Info widget displays data attributes (#3022)
Icon redesign: k-means, clustering, distances (#3018)

Bugfixes

postgres: Fix wrong discrete values (#3109)
OWRank: Select Attributes fixes and improvements (#3084)
EditDomain: Editing TimeVariable broke formatting (#3101)
OWMosaic: Don't offer String meta attributes (#3072)
owkmeans: fix initialization choice (#3090)
Workaround for segfaults with Nvidia on Linux (#3100)
Canvas: Fix 'Widgest on top' (#3068)
Re-cythonize with Cython 0.28 for Python 3.7 compatibility (#3067)
BSD compatibility patch (#3061)
OWScatterOWScatterPlotGraph: Match group colors with marker colors (#3053)
listfilter: Fix filter line edit completion (#2896)
VizRank: Fix race condition in toggle (#3042)
Heat Map: Allow labeling by TimeVariable (#3026)
Select Columns: Drag/drop (#3032)
gui: Suppress mouse button release on the combo box popup (#3025)
tests: Fix time tracking in process_events (#3041)
test_owmosaic: Cleanup/join threads on test tear down (#3040)
owselectcolumns: Fix performance on filtering with selection (#3030)
test: Fix tests for 'Datasets' widget (#3033)
Sorting add-ons in the alphabetical order (#3013)
owscatterplot: Use correct data for regression line (#3024)
Add-ons dialog: Restore state (#3017)
Feature constructor does not restore features when loading from saved workflow (#2996)
boxplot labels overlap (#3011)
owdiscretize: Fix quadratic complexitiy in the n variables (#3016)

3.13.0 - 2018-04-17

Enhancements

canvas/add-ons: Add extra packages via a name input dialog (#3006)
Variable lists (with QListView) optimizations (#2994)

Bugfixes

Add-ons working again (PyPI JSON interface + local official index) (#3005)
Fix variable type guessing (#2998)
Addon dialog crashes when site-packages directory does not exist (#2988)
Fix reading double quoted text fields (#2989)

3.12.0 - 2018-04-06

Enhancements

owselectrows: Change defaults for 'Purging' (#2969)
statistics: Speed up countnans for sparse matrices (#2965)

Bugfixes

Sieve Diagram: Fix spacing of axis labels (#2971)
Fix data reading speed (#2923)
KMeans clear results on k change, do not recluster (#2915)
gui.ControlledList: Take a weakref to listBox (#2962)
WidgetManager: Schedule delayed deletion for managed OWWidgets (#2963)
domaineditor: Give the VarTableModel a parent (#2961)
scatterplot: limit number of points displayed in tooltip (#2980)
Speed-up prediction by circumventing Instance-specific prediction. (#2959)
Vizrank: Properly shutdown/wait when parent deleted (#2960)
Test & Score: Make the scores view table non-editable (#2947)

3.11.0 - 2018-03-07

Enhancements

Distances: Optimize PearsonR/SpearmanR (#2852)
Data Table: Optimize performance (#2905)

Bugfixes

Save Image to SVG fixed on Qt5 (#2930)
Test & Score: Resort scores when data changes (#2931)
distribution.py: Fix computation on multiclass data (#2903)
contingency.pyx: Fix out of bound write (#2924)
Test and Score: Fix averaging over classes for binary scores (#2918)
sgd: Change deprecated n_iter to max_iter (#2920)
heatmap: Do not crash on all zero column (#2916)

3.10.0 - 2018-02-19

Enhancements

Select Rows: Add annotated data output (#2908)
canvas: Open dropped ows files (#2885)
Settings for HTTP and HTTPS proxies in the canvas (#2906)
Add-ons: Option to list only trusted add-ons (#2899)

Bugfixes

SPG Legend: Fix vertical spacing (#2914)

3.9.1 - 2018-02-02

Enhancements

Add parameters and similarity measures to tSNE (#2510)
Canvas: Add zoom (#2841)

Bugfixes

OWWidget: Store quicktip displayed state in non versioned settings dir (#2875)
Impute: Fix state serialization/restore (#2830)
Feature Constructor: Make FeatureFunc picklable (#2873)
Projection widgets: transform data properly (#2871)

3.9.0 - 2018-01-19

Enhancements

Linear Discriminant Analysis: scripting part (#2823)
owdistances: Add 'Normalize' check box (#2851)
Variable: Simplify the is_{discrete,continuous,...} implementation (#2874)
manifold: Use arpack for decomposition in torgerson (#2825)
Radviz: new widget (#2480)
Canvas: Improve preview rendering (#2784)
Linear Projection (LDA, PCA) (#2445)
Scatter Plot Graph: max discrete values colors and shape (#2804)
Scatter Plot Graph: legend opacity (#2819)

Bugfixes

Add labels to combo when data comes from distance matrix (#2866)
utils/concurrent: Handle an empty futures list (#2834)
OWWidget: Move 'splitter' to private members (#2847)
Radviz: enable VizRank numeric color (class) (#2853)
Bincount: Fix crash on array with all nans (#2831)
mds: Fix incorrect assert (#2844)
VizRank (Linear Projection, Radviz): spin disabled/enabled (#2846)
Windows installers: Python lookup (#2827)
Canvas: Palette propagation (#2760)
mssql: Catch errors due to incorrect connection params (#2838)
canvas/addons: Fix progress dialog showing up when not necessary (#2833)
ContextHandler: Merge local context into globals before serialization (#2837)
Hierarchical Clustering: Fix size constraints (#2796)
canvas/annotationitem: Use separate item for shadow base (#2821)
Scatter Plot Graph: vars instead of indices & remove dead code (#2815)
Table: classes (Y) must be float (#2822)

3.8.0 - 2017-12-01

Enhancements

New signals: Trees, Forest (#2801)
Scatter Plot: Improve tooltips (#2703)
Allow custom (generic) names in Transpose Widget (#2737)
Scatter Plot VizRank: some fixes and regard to color (#2787)
Improved Sparsity Handling (#2341)
Error Reporting: send report even when recursion error is raised
test_owdatasets: Test files at different (dir tree) depths
[FIX] Rank: should not fail on data with no attributes
Domain: Add copy method (#2734)
Domain Model: order without separators (#2697)

Bugfixes

Test & Learn: do not crash on a data with class only nans (#2751)
FreeViz: 2 issues when no data (#2780)
[ENH] Scatter Plot VizRank: some fixes and regard to color (#2787)
Scatter Plot Graph: crash on metas column with all 0 values (#2775)
Scatter Plot: subset data (#2773)
Scatter Plot: VizRank disabled when no class vars (#2757)
Error Reporting: send report even when recursion error is raised
Select Rows: None on output when no data (#2726)
test_owdatasets: Test files at different (dir tree) depths
[FIX] Rank: should not fail on data with no attributes
Predictions: space added before bracket in meta name. (#2742)
Fix AbstractSortTableModel.mapFromSourceRows for empty list or array (#2730)
Correspondence Analysis: do not crash when no categorical (#2723)
ScatterPlotGraph: fix zoom CTRL + and CTRL - (#2716)
errorreporting: Remove use of pip internal api (#2724)

3.7.1 - 2017-11-17

Enhancements

MDS: Support showing textual features as labels (#2699)

Bugfixes

canvas/canvasmain: Fix 'Examples' action handling in the welcome dialog (#2779)
Nomogram on PyQt4 (#2763)
Broken installation of Installation of wheels (#2765)
Add-on installation crashes (when conda not in PATH) (#2725)

3.7.0 - 2017-10-27

Enhancements

Data Sets: Add filter (#2695)
Add-on installation with Conda (#2561)
Add Groups column to Selected Data in Scatter plot output (#2678)
DomainModel: Don't Show Hidden Variables by Default (#2690)
FreeViz: new widget (#2512)
FreeViz script (#2563)
Boxplot: Allow hiding labels (#2654)
owmds: Support selection/output of multiple groups (#2666)
Widget status bar buttons (#2514)
owfile: allow multiple readers with same extension (#2644)

Bugfixes

Tree Viewer: reset view to top left (#2705)
ScatterPlot Crashes on Data With Infinity Values (#2709)
Scatter Plot: regression line: show r instead of k (#2701)
settings: Do not clear schema_only settings on close_context (#2691)
Statistics.unique: Fix Sparse Return Order For Negative Numbers (#2572)
Statistics.countnans/bincount: Fix NaN Counting, Consider Implicit Zeros (#2698)
MDS: No optimization when subset data (#2675)
Outliers widget no longer checks classes and doesn't crash on singular covariances matrices (#2677)
OWRank: Fix autocommit (#2685)
OWScatterPlot: Change output Feature to AttributeList (#2689)
OWSql does not save selected table/query (#2659)
Scatter Plot: Scatter Plot automatically sends selection (#2649)
Silhouette plot rendering (#2656)
Variable.make returns proxies (#2667)
owhierarchicalclustering: Fix performance on deselection (#2670)
Report Table: Make Table Headers Bold (#2668)
MDS: primitive metas, init_attr_values (#2661)
MDS: Primitive metas (#2648)
MDS: similar pairs and combos not cleared (#2643)
Scatter Plot: remove dead and commented code, tests (#2627)

3.6.0 - 2017-09-29

Enhancements

PythonScript: Multiple inputs (#2506)
DomainEditor: Add horizontal header (#2579)
Feature Constructor: Support additional functions () (#2611)
Miniconda installer: Install conda executable (#2616)
Datasets: New widget (#2557)
Neural Network widget (#2553)

Bugfixes

settings: Store settings version in the serialized defaults (#2631)
canvas/stackedwidget: Check if the new geometry is the same as the old (#2636)
OWRank: sort NaNs last; fix sort indicator (#2618)
Schema-only settings in components (#2613)
OWBaseLearner: Save learner name in workflow (#2608)
Saving of multiple selections in ScatterPlot (#2598)
OWBoxPlot: Faster selection (#2595)
preprocess.randomization: Do not use the same seed for X, Y, and meta (#2603)
Slow Rank (#2494)
setup: Increase required setuptools version (#2602)
Disable pyqtgraph's exit cleanup handler (#2597)
ScatterPlotGraph: fix labelling when there are missing data (#2590)
canvas: Fix link runtime state modeling (#2591)
Tree: Reintroduce preprocessors. (#2566)
canvas/preview: Fix workflow preview rendering (#2586)
Fix saving reports on Python 3.6 (#2584)
Fix failing report tests (#2574)
widgets/tests: Compatibility with Python 3.5.{0,1} (#2575)

3.5.0 - 2017-09-04

Enhancements

Proper calculation of distances (#2454)
OWFeatureConstructor: Add new functions from numpy (#2410)
Widget status bar (#2464)
Impute widget: Parallel execution in the background (#2395)

Bugfixes

Mosaic Display: subset data (#2528)
MDS: Optimize similar pairs graphics construction (#2536)
Error Reporting: read attached schema file as utf8 (#2416)
Another color palette when too many colors needed (#2522)
Widget: splitter sizes (#2524)
Silhouette Plot: another memory error (#2521)
Fix asynchronous widget tests (#2520)
Mosaic Vizrank: compute_attr_order is called every step (#2484)
widgets/model: Restore 'explicit' hint flag for 'Coefficients' output (#2509)

3.4.5 - 2017-07-27

Enhancements

OWMDS, OWLinearProjection: Save selection in workflow (#2301)
SQL: Save user name and password via credentials manager (#2403)
Canvas Annotations: Text markup editing (#2422)
New windows installer scripts (#2338)

Bugfixes

Tree: Fix min_samples_leaf check (#2507)
Tree: Support classification on sparse data (#2430)
Trees: Support regression on sparse data (#2497)
Trees: Fix predictions on sparse data (#2496)
Change Variable Icons: Discrete -> Categorical, Continuous -> Numeric (#2477)
Distributions: Show probabilities upon selection (#2428)
Manifold Learning: Handling out of memory error (#2441)
CN2 Rule Induction: Handling out of memory error (#2397)
Hierarchical Clustering: Explicit geometry transform (#2465)
Scatter Plot Graph: Legend symbols color (#2487)
Table: Fix printing data with sparse Y (#2457)
Ensure visible nodes after opening a workflow. (#2490)
Select Rows: Removing Unused Values for Discrete Variables in Sparse Data (#2452)
simple_tree.c: Fix mingw compiler compatibility (#2479)
Add-ons: Fix Installation of Official Add-ons Through Drag & Drop (#2481)
Mosaic: Clear when data is disconnected (#2462)
Create Class: Class name cannot be empty (#2440)
WidgetSignalsMixin: Fix input/output ordering for 'newstyle' signals (#2469)
Table: Update ids in Table.__del__ (#2470)
Preprocess: Fix RemoveNaNClasses / Use existing HasClass (#2450)
SQL: Fixes for Custom SQL option (#2456)
OWColor: Fix propagating changes to the output (#2379)
Distances: Prevent inf numbers (#2380)
Test and Score: Show default columns (#2437)
Silhouette Plot: Now setting axis range properly (#2377)
Logistic Regression: Impute (#2392)
schemeedit: Clear edit focus before removing items (#2427)
Disable menu and mouse zoom in all evaluate's plotting widgets. (#2429)
canvas: Fix proposed connection scoring for dynamic signals (#2431)
ROC Analysis: Color support for more than 9 evaluation learners (#2394)
Scatter Plot: Two minor errors (#2381)
Feature Constructor: No fail when no values (#2417)

3.4.4 - 2017-06-16

Enhancements

SimpleTreeLearner: Release GIL & thread safety (#2398)
Improve support for HiDPI displays (#2325)
Add a tutorial section on responsive GUI (#2318)
Check if updates are available upon startup (#2273)

Bugfixes

Vizrank: interact with gui from main thread only (#2389)
Some preprocessors couldn not be pickled (#2409)
MDS: Support distances without domain information (#2335)
Paint Data: Fix crash on empty data (#2399)
Distributions: do not crash on empty data (#2383)
Update checker: LooseVersion does not handle str parts (#2401)
owpreproces: Stable order of continuizers (#2400)
owmanifoldlearning: Remove n_jobs=-2 parameter (#2371)
Scatter Plot: features and no data (#2384)
tests: Fix test errors when running with numpy 1.13.0 (#2396)
OWColor: Use DiscreteVariable values for matching contexts (#2376)
Outliers: handling memory error (#2374)
score.FCBF: do not segfault on continuous variables w/ <0 values (#2355)
Rank widget supports Scorer inputs (#2350)
Silhouette Plot: handling memory error (#2336)
Distances: handling errors due to too large arrays (#2315)
Confusion Matrix: do not append extra column if empty (#2386)

3.4.3 - 2017-06-03

Enhancements

Venn diagram: Support sparse data (#2334)
PCA: Support sparse data (#2313)
Impute: Support sparse data (#2357)
Merge: Support sparse data (#2305)
Scatter Plot: Support sparse data (#2152)
Manifold: Support t-SNE on sparse data (#2281)
Mosaic: Selectable color variable (#2133)
Test & Score: Allow choosing columns (#2257)
Preprocess: Add all available methods to feature selection (#2205)
Scatter Plot: Support string metas labels (#2360)

Bugfixes

Fix and improve Precision, Recall, F1 (#2369)
Paint Data: Stores data in list and not np.array (#2314)
Paint Data: Save and load labels (#2259)
File: No domain or empty domain -> no data (#2337)
File: Support sparse data in Domain Editor (#2245)
File: Raise and handle Exc. when file bad pickle (#2232)
Test & Score: Fix migration of old settings (#2254)
Test & Score: Show correct error (#2263)
Test & Score: Instantly recognize new input (#2247)
Test & Score: Handling memory errors (#2316)
Tree Viewer: Check if there is selected class value (#2224)
CredentialManager: Handling password credentials error (#2354)
RowInstance: Fix sparse check (#2362)
Cross Validation: Cast fold number to string (#2348)
Silhouette Plot: Elide hover labels if labels are long (#2278)
Select Rows, Table: Filtering string values (#2176)
Report: Handle PermissionError when trying to save (#2225)
Continuize: Prevent crashing - column with equal and NaN values (#2144)
Add-ons: Handling ValueError due to connection problems (#2239)
Correspondence: Prevent crashing when cont attr has one value (#2149)
WebEngineView: Insert JS if loading already started (#2230)
Manifold Learning: handling numpy LinAlgError (#2228)
MDS: Fix widget update scheduling (#2211)
Settings: Handle permission errors when saving settings (#2147)
Map: Minor fixes (#2356)

3.4.2 - 2017-04-19

Enhancements

Nomogram: Support for sparse data (#2197)
Add PDF format to image exporters (#2210)
Reimplement macOS application (.app) build scripts (#2217)
Canvas: Use 'windowFilePath' to display display current filename instead of the title (#2206)
OWTestLearners: Cross validation by feature (#2145)
Pythagorean tree: Make border scale invariant (#2141)

Bugfixes

Scatterplot crashes when loaded from old workflow (#2241)
Error Report: URL changed (#2220)
Scatter Plot: update class density (#2238)
KMeans: should not crash when there is less data rows than k (#2172)
Edit Domain: Prevent duplicate variable names (#2146)
Scatter Plot: left margin (axis y) is now adapting (#2200)
Predictions widget: handle similar but different domains (#2129)
OWNomogram: Do not paint scene until the widget is not open (#2202)
Test & Score: crashing prevented when learner disconnects (#2194)
Widget Logistic Regression: can handle unused values (#2116)
stats: Open Corpus in OWDataTable after transposing it (#2177)
Rank: fixes creating Table with infinite numbers (#2168)
Add-ons: Problems with datetime parsing (#2196)
OWPredictions: Allow classification when data has no target column (#2183)
OWDataSampler: Fix typo boostrap to bootstrap (#2195)
All widgets are set to auto* when they are used for the first time (#2136)
Preprocess: enums containing function names changed (#2151)
Fitter: Fix used_vals and params not being set (#2138)
VizRankDialog: Stop computation when parent widget is deleted (#2118)
Distributions Report: Visualizations are now fitted (#2130)
Fitter: Change params uses default if None (#2127)
Fix invalid settings reuse in File widget (#2137)
Scatter Plot - Prevent crash due to missing data (#2122)
Sieve Diagram: Using datasets with meta data (#2098)

3.4.1 - 2017-03-16

Enhancements

Scatterplot: Implement grouping of selections (#2070)

Bugfixes

Discover widgets when some dependencies are missing (#2103)
Select Rows: "is defined" fails (#2087)
report comments and OWFile reporting filename (#1956)
owcorrespondence: Handle variables with one value (#2066)
OWTreeViewer: Fix trees being displayed differently for same tree object (#2067)
Fitter: Properly delegate preprocessors (#2093)

3.4.0 - 2017-03-06

Enhancements

OWSGD: Output coefficients (#1981)
OWNomogram: Add a new widget (#1936)
OWRandomize: Add a new widget (#1863)
Map widget (#1735)
Table.transpose: Use heuristic to guess data type of attributes of attributes (#1844)
Create Class widget (#1766)

Bugfixes

Heatmap: Fix crash on data with empty columns (#2057)
ScatterPlot: Fix crash when coloring by column of unknowns (#2061)
owpreprocess: Handle columns with only NaN values (#2064)
File: Disallow changing string columns to datetime (#2050)
OWKMeans: Auto-commit fix and silhuette optimization (#2073)
OWDistributions: Fix binning of meta attributes (#2068)
SelectRows: Fix loading of conditions (#2065)
OWRandomize: New icon (#2069)
ZeroDivisionError owmosaic.py (#2046)
OWMosaic: Fix crash for empty column (#2006)
Fitter: Fix infinite recursion in getattr (#1977)
OWTreeGraph: Update node text when selecting target class (#2045)
Prevent PickleError (owfile.py) (#2039)
Fix Chi2 computation for variables with values with no instances (#2031)
OWDistanceMatrix: Remove quotes with string labels (#2034)
owheatmap: Prevent sliders to set Low >= High (#2025)
WebviewWidget: WebEngine Don't Grab Focus on setHtml (#1983)
OWFile: Show error msg when file doesn't exists (#2024)
Preprocess Widget: Continuize type error (#1978)
data/io.py Metadata file not saved anymore when it is empty (#2002)
Import from AnyQt instead from PyQt4 (#2004)
OWNomogram: Adjust scene rect (#1982)
owconcatenate: Fix domain intersection (remove duplicates) (#1967)
preprocess: Reset number_of_decimals after scaling (#1914)
Treeviewer sklearn tree compatibility (#1870)
OWSVR: Update learner when SVR type changes (#1878)
Tree widget binarization (#1837)

3.3.12 - 2017-02-14

Bugfixes

Highcharts: Fix freezing on Qt5 (#2015)
Handle KeyError Mosaic Display (owmosaic.py) (#2014)
Loading iris on C locale (#1998)
Handle KeyError Sieve Diagram widget (owsieve) when one row (#2007)
Test Learners: Fix AUC for selected single target class (#1996)
OWDataSampler: Fix 'Fixed proportion of data' option (#1995)

3.3.11 - 2017-02-03

Enhancements

Widget testing utilities (#1939)

Bugfixes

KMeans: Fix crashes when underlying algorithm fails (#1974)
owpaintdata: Adjust color model to input dataset (#1988)
scatterplot: Fix density image (#1990)
owpaintdata: Fix an error when the input dataset contains NaN (#1972)
Table: Ensure correct dtype in _compute_distributions (#1969)
Evaluation Results input validation (#1954)
owimpute: Fix editing of individual imputers (#1966)
gui: Trigger callback in SpinBoxWFocusOut only if value changed (#1979)
Python 3.6 compatibility (#1963)
File: Fix crash when last_path is None (#1961)
Paint Data: in-place output modification (#1959)
DataSampler: Fix crash when stratifying unbalanced datasets (#1952)
Table.repr: Fix for sparse data with < 5 instances (#1951)
Catch errors during learning in learner widgets (#1949)
OWMosaic: Fix crash for attribute with no values (#1941)
Impute: Fix crash when model-based imputation fails (#1937)
OWSieve: Fix crash for attribute with no values (#1934)
Tree: Fix crash when two attributes equal number of values (#1928)
Store changed variables in File widget (#1805)

3.3.10 - 2017-01-18

Enhancements

Input/output signal replacement declarations (#1810)

Bugfixes

MDS Widget: Handle NaN values for plot point styling (#1931)
OWPCA: Fix crash for dataset with no rows or no attributes (#1915)
OWMosaic: Discretize metas as well (#1912)
owfeaturecontructor: Fix an IndexError accessing exception's args (#1905)
owrank: Remove super() call from migrate_settings (#1902)
OWBoxPlot: Fix ordering of boxes (#1900)
canvas/readwrite: Fix byte literal serialization (#1898)
owpca: Handle the case of 0 total variance in the PCA solution (#1897)
Copy data attributes for annotated data set (#1895)
colorpalette: Fix AttributeError (#1889)
OWDistributions: Reset combos when data is removed (#1887)
Concatenate bugfix (#1886)
OWPredictions: Fix crash when opening report (#1884)
owsilhouetteplot: Fix TypeError when cluster column is an object array (#1876)
OWSave: Safer Check if Writer Support Sparse (#1864)
OWImageViewer: Fix selection with missing values (#1861)
owselectcolumns: Fix auto commit on any change (#1859)
Table.transpose: Keep metas array two dimensional when no attributes in domain (#1855)
Select Rows filter enum (#1854)
Scatter plot: don't crash on report without data (#1840)
Crash on ctrl-c/cmd-c in widgets without graphs (#1827)
Fix crash in listview if labels are changed before calling setitem (#1825)
Scatterplot: Allow labelling by string attributes (#1812)
Fix copy to clipboard in "Data Table" widget (#1808)
TreeGraph: Compatibility with old schemas (#1804)

3.3.9 - 2016-12-02

Enhancements

OWTranspose: Add a new widget (#1738)
Add appveyor configuration (#1693)
Vizrank indicators and filters (#1746)
OWManifoldLearning: MDS - enable PCA initialization (#1702)
Add VizRank to Mosaic (#1699)
Setting migration (#1724)
widget: Allow subclasses to disable the default message bar widget (#1543)
Manifold Learning (#1624)
SQL Server support in SQL widget (#1674)
Visualize widgets: Output Annotated data and Fixups (#1677)
Add support for PyQt5 (#1171)
Simple benchmarking suite. (#1510)
Canvas: Always show the link dialog if the user holds Shift (#1673)
Scatterplot, HeatMap, TreeGraph, ConfusionMatrix and Unsupervised widgets: Output Flagged Data (#1655)
CN2RuleViewer: Output sample of training data in absence of separate data (#1667)
Metadata for data files (#1603)

Bugfixes

owrank: Add migrate_settings (#1797)
owconfusionmatix: Add migrate_settings (#1796)
Improve ada boost widget (#1787)
OWBoxPlot: Fixups (#1783)
Filter: Fix FilterContinuous eq operator (#1784)
OWDistanceMatrix: attribute in context (#1761)
Hierarchical clustering: Make annotation a context setting (#1748)
Fix varius deprecation (and other) warnings (#1774)
Fix transformation for non primitive variables (#1770)
TimeVariable: don't crash Data Table when reloading and Visualize ... (#1760)
OWDistances: Mahalanobis wrong dimensions notification. (#1762)
Switch Sieve to DomainModel, which also fixes VizRank crash on meta attributes (#1642)
Confusion matrix: Map annotated data through row_indices, add probabi… (#1720)
OWLoadClassifier: Show message on unpickling error (#1752)
Silhouette Plot: Fixes (#1747)
canvas/toolgrid: Remove (unused) mouse press event tracking (#1740)
Box plot: Handle situation when quantiles can't be computed (#1742)
owfile: Hide apply button after resetting editor_model (#1711)
oweditdomain: Initialize var attribute (#1731)
FeatureConstructor: Fix crash when new variable is created without data (#1733)
owpythonscript: Fix QFileDialog.get{Save,Open}FileName usage (#1726)
DendrogramWidget: Prevent a zero division error (#1725)
owfile: Skip add_origin if no filename (#1717)
OWFile: Do not load large files automatically (#1703)
Do not show messages when data is removed (#1706)
Confusion Matrix: Show error on regression results (#1709)
Fix tests (#1698)
Scatter Plot: Fix a error when restoring from pre DomainModel workflows (#1672)
Tree Scorers: Change 'int64_t' to 'intp_t' for platform independence (#1687)
OWTable: Sort Continuous metas as floats; not strings (#1678)
Error Reporting: Temporary last open/save directory (#1676)
TableModel: Don't crash on empty sparse data (#1675)
Statistics.util.stats: Fix negative #nans for sparse (#1659)
MDS Widget: Fix zero length line, gray square bug (#1670)
Fix an error when using latest pyqtgraph develop snapshot (#1662)
OWHeatMap: Resend 'Selected Data' when settings change (#1664)
Fix pythagoras tree tooltip for regression trees (#1660)
OWConfusionMatrix: Output None when no data is selected (#1653)
OWBoxPlot: Reset widget's appearance when data is removed (#1654)

3.3.8 - 2016-10-11

Enhancements

CredentialManager: Store passwords in System Keyring Services (#1641)
Extend widget creation policy (#1611)
File widget improvements (#1607)
Remote reporting of unexpected errors (#1558)
OWRank: Widget improvements (#1560)
canvas: Indicate runtime state on links (#1554)
Rule induction (CN2) (#1397)
Upgrade OWSvm unittests (#1499)
Enable Ward clustering in Hierarchical clustering widget (#1515)
PCA transformation speedup (#1539)

Bugfixes

owsql: Fix bug when using connection before established (#1638)
Scatterplot: Reintroduce sliders for size and opacity (#1622)
Reporting tabular in Data Table and Rank widgets (#1573)
BoxPlot crashes on variables with no known values (Fixes #1568) (#1647)
Canvas: Replace illegal file-name characters with _ when saving workf… (#1644)
OWScatterPlot: Fix progress bar percentages running over 100% (#1645)
OWFile: Report errors for incorrect file formats instead of crashing (#1635)
OWFeatureConstructor: Fix domain check for only meta data sets (#1632)
gui.lineEdit: Restore changed state tracking (#1630)
errorreporting: Fix an KeyError for a missing 'Widget Module' entry (#1625)
win-installer: Build scikit-learn in windows installer build script (#1623)
owlearnerwidget: Fix output initialization (#1562)
gui: Add a push button class adapted for variable width text (#1614)
: Add Explicit flag to supplementary Table learner output (#1617)
Silhouette: Auto-commit on changing checkbox state (#1606)
Linear regression: Fix Elastic net; Fix Auto-apply buttons (#1601)
ROC Analysis - Fix roc averaging (#1595)
OWBaseLearner: Do not re-fit if name has changed (#1580)
Context attributes with metas in Sieve and Mosaic (#1545)
Variable: Fix Variable.copy for StringVariable and TimeVariable (#1589)
Stats: Fix counting of missing values for non-numeric data (#1585)
Load Classifier widget sends classifier on init (#1584)
Context settings (#1577)
Fixed svg function to return svg chart together with container div for highcharts (#1541)
Fix compatibility with Color widget (#1552)
Gini impurity: formula and docstring fixed. (#1495)
owimageviewer: Open local images directly (#1550)
Fix loading of datasets with paths in variable attributes (#1549)
Confusion matrix: fix selected_learner setting (#1523)
canvas/addons: Remove wrong/unnecessary proxy mapping (#1533)
Scatterplot: Score Plots crash if multiple attributes have the same score (#1535)
ScatterPlot: Score Plots window title changed to title case (#1525)
Predictions: column size hint (#1514)

3.3.7 - 2016-08-05

Enhancements

ImageViewer: Add a 'Preview' like window (#1402)
Pythagorean tree and Pythagorean forest widgets (#1441)
New workflow examples for the Welcome screen (#1438)
Test widgets on travis (#1417)
Save painted data to schema (#1452)
Welcome screen: New icons for welcome screen (#1436)
SqlTable: Automatically recognize date/time fields (#1424)
Proxy support for add-on installation (#1379)
Automatically create required SQL extensions (#1395)
Ranking for Sieve, refactoring of Sieve, Mosaic and VizRank (#1382)
Rank adopted for sparse data (#1399)
PCA: Add lines and labels showing the explained variance (#1383)
Implement copying graph to clipboard using Ctrl-C (Cmd-C) (#1386)
Parallelized cross validation & other evaluation methods (#1004)
Image viewer thumbnail size (#1381)

Bugfixes

Table names set by readers (#1481)
OWRandomForest: Fix, refactor and widget tests (#1477)
KNN: Fix crash when Mahanalobis metric is used (#1475)
Fix AdaBoost widgets and add some tests (#1474)
Table: Fix ensure_copy for sparse matrices (#1456)
statistics.utils: Fix stats for sparse when last column missing (#1432)
MDS and Distances widges fix (#1435)
OWBaseLearner: Learner name is changed on output when user changes it and auto apply selected (#1453)
Stop advertising support for weights in LogisticRegression. (#1448)
OWScatterPlot: Fix information message reference (#1440)
Fix Tree preprocessor order. (#1447)
SqlTable: Cast to text for unknown and string types (#1430)
NaiveBayes: Handle degenerate cases (#1442)
OWBoxPlot: Show corresponding label when ploting discrete variable (#1400)
Lin and Log Regression: Prevent double commit (#1401)
KMeans: Silhouette score format precision fixed to integer (#1434)
Select Rows: skip undefined TimeVariable filters (#1429)
OWTestLearners: Fix reporting results table (#1421)
Scatterplot: Sends none in no instance selected (#1428)
PCA: Fix the variance spin. (#1396)
overlay: Auto disconnect when the overlay widget is deleted (#1412)
PaintData: Send None instead of empty table when the plot is empty (#1425)
Rand Forest Class: Min sample replaces max leaf nodes (#1403)
SelectRows: Index attrs only by visible in set_data (#1398)
File: Stores filenames to image attributes (#1393)
Fix a logging error on windows (#1390)
OWLearnerWidget: Don't crash when training data contains no features (#1389)
TimeVariable: fix repr rounding and repr for nan (#1387)

3.3.6 - 2016-06-24

Enhancements

Automatically discretize continuous variables in Sieve (#1372)
Nicer reporting of tabular data (e.g. Confusion Matrix) (#1309)
Match only at the beginning of word in quickMenu search (#1363)
Univar regression coefficients (#1186)
Add Mahalanobis distance (#1355)
Move Data Table higher in the 'suggested widgets' list (#1346)
Support Distances on Sparse Data (#1345)
Add auto apply to Test & Score (#1344)
Support unix timestamps in TimeVariable (#1335)
Skip Hidden Attributes in SelectRows (#1324)
Preprocessor widget: add random feature selection (#1112)
Sort list of available add-ons (#1305)

Bugfixes

Fix and improve handling of input data in PaintData (#1342)
Mosaic: Output original data, not discretized (#1371)
Fix report for OWLinearProjection (#1360, #1361)
Fix auto-apply in SelectColumns (#1353)
Fix a RuntimeError in ImageViewer when clearing the scene (#1357)
Use https to query pypi API (#1343)
OWBaseLearner: Add name attribute to learner (#1340)
Pass data attributes after preprocess. (#1333)
Better support for sparse data (#1306)
gui.auto_commit: Fix crash when caller gives argument (#1325)
Fix image viewer runtime error (#1322)
Better selection indicators in canvas (#1308)
Open correct help file for add-on widgets (#1307)

3.3.5 - 2016-06-01

Bugfixes

Revert hack that caused missing icons in osx build
Fix installation in environments without numpy installed (#1291)
Allow running of library test when PyQt is not available (#1289)

3.3.4 - 2016-05-27

Enhancements

Install add-on by dragging zip/tgz/wheel onto the addons dialog (#1269)
Added missing reports (#1270, #1271, #1272, #1273, #1279)
Add auto-apply checkboxes to learner dialogs (#1263)
Sort numeric values as numbers in Table (#1255)
Open dragged files in OWFile (#1176)
Support context cloning in FeatureConstructor and SelectRows (#1196)

Bugfixes

Depend on scikit-learn>=0.17 (#1277)
Fix installation problem on windows (#1278)
Fix crash in K-means when silhouette cannot be computed (#1247)
Fix crash in Distributions on empty data (#1246)
Reset outputs in MergeData (#1240)
Compute distances between constructed Instances (#1242)
Fix links in Changelog (#1244)

3.3.3 - 2016-05-03

Bugfixes

Revert installation of desktop launcher on Linux (#1218)
Fix a crash when learner is connected to file (#1220)

3.3.2 - 2016-04-22

Enhancements

New preprocessors ReliefF and FCBF (#1133)
New feature scorers ANOVA, Chi2 and Univariate Linear Regression (#1125)
Mosaic plot can display numeric attributes (#1165)
Sheet selection for excel files in File widget (#1164)
Check code quality with pylint on Travis (#1121)
Improve PyQt5 forward compatibility (#1029)
Include default datasets in File widget (#1174)
Install desktop launcher on linux (#1205)

Bugfixes

Fix a bug in nested transformation of instance (#1192)
Fix vizrank's crash when pair had no valid data (#1189)
Save Graph doesn't save axes (#1134)
Open included tutorials with correct dataset (#1169)
Disable bsp index on the main canvas scene (#1168, #1173)
Fix FeatureConstructor crash with Python 3.5 (#1157)
Include feature names in Rank Widget report (#1022)
Decrease memory consumption in PCA (#1150)
Fix dragging of treshold in PCA widget (#1051)
Save TimeVariable in ISO 8601 format (#1145)
Allow use of feature metadata in MDS (#1130)
OWSelectColumns: fix drag and drop for features with Unicode names (#1144)
Warn when setting values are not present on instance (#1139)
Fix printing of Table with a TimeVariable (#1141)
Fix Test & Score widget report (#1138)

3.3.1 - 2016-03-24

Enhancements

Rank widget outputs scores
SGD Regression widget: Fixed layout and added reporting

Bugfixes

Windows installer: update pip on target system if required

3.3 - 2016-03-18

Enhancements

Changed layout of File widget
Distance matrix widget
Meta attributes in Sieve and Mosaic
New type of variable: Time variable
Report for Distance Transformation widget
Report for Linear Regression widget
Report for Univariate Regression (fixes #1080)
score.FCBF: a Fast Correlation-Based Filter for feature selection
Sieve enhancements
Silhouette Plot widget
Venn Diagram: Add option to output unique/all instances.
Widgets for saving and loading distances

Bugfixes

breast-cancer.tab: change type of tumor-size column (fixes #1065)
Color: Do not resize columns in continuous table to contents (fixes #1055)
Exporting graphs to dot format
OWDistributions: Do not remove constant attribute and do not draw if there is no data
OWRank: Give name to Scores output table
OWRank no longer crashes when additional learners are available
ReliefF: Support for missing target values
Report: Fix crash on reporting tables
RF without pruning by default

Documentation

Update build/install/contributing READMEs
Update documentation in widget.rst

3.2 - 2016-02-12

Finalized Orange 3.2, switched to stable(r) release cycles

0.1 - 1996-10-10

Initial version based on Python 1.5.2 and Qt 2.3

Files

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History

CHANGELOG.md

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3.29.2 - 2021-06-08

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3.29.1 - 2021-05-31

3.29.0 - 2021-05-28

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3.28.0 - 2021-03-05

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3.27.1 - 2020-10-23

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3.27.0 - 2020-10-09

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3.26.0 - 2020-06-12

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3.25.1 - 2020-05-22

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3.25.0 - 2020-04-10

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3.24.1 - 2020-01-17

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3.24.0 - 2019-12-20

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3.23.1 - 2019-10-03

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3.23.0 - 2019-09-05

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3.22.0 - 2019-06-26

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3.21.0 - 2019-05-20

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3.20.1 - 2019-02-12

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3.20.0 - 2019-02-01

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3.19.0 - 2018-12-11

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3.18.0 - 2018-11-13

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3.17.0 - 2018-10-26

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3.16.0 - 2018-09-14

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3.15.0 - 2018-08-06

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3.14.0 - 2018-07-04

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3.13.0 - 2018-04-17

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3.12.0 - 2018-04-06

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3.11.0 - 2018-03-07

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