removed old examples updated XOR

examples/XOR.js

@@ -1,59 +1,30 @@
+/*
+ * This example trains a neural network to solve the XOR problem
+ */
+var evo = require('evo-js');
 
-var evo = require('../evo.js');
+var pool = evo.pool();
 
-var pool = evo.pool({
-	n_genes: 10, // Number of genes of each object
-	size: 400,     // Size of pool
-
-	cross_rate: 0.10,
-	mutate_rate: 0.7,
-	mutate_amount: 1.85,
-
-	ratios: {
-		top:    1.00,
-		cross:  0.33,
-		mutate: 2.00,
-		fresh:  0.20,
-		meld:   0.75,
-		random: 1.25,
-	}
-
-});
-
-pool.on ('spawn', function(genes){
+pool.on('run', 	function(genes){
+	// Create a neural network
 	var net = evo.network('feedforward', genes, {
 		output_nodes: 1,
-		hidden_nodes: 2, 
+		hidden_nodes: 2,
 		input_nodes: 2
 	});
 
-	return net;
-});
-
-// Show the average each generation
-pool.on('breed', function(){
-	// console.log(this.average);
+	// Create a score based on the networks output
+	var score = 0;
+	score += net.calc([-1, -1]) > 0 ? 1 : 0;
+	score += net.calc([ 1,  1]) > 0 ? 1 : 0;
+	score += net.calc([ 1, -1]) < 0 ? 1 : 0;
+	score += net.calc([-1,  1]) < 0 ? 1 : 0;
+	return score;
 });
 
-pool.on('run', 	function(){
-	var net = this.spawn()
-
-	// Max score is 4 if it correctly classifies all points
-	net.score += net.calc([-1, -1]) > 0 ? 1 : 0;
-	net.score += net.calc([ 1,  1]) > 0 ? 1 : 0;
-	net.score += net.calc([ 1, -1]) < 0 ? 1 : 0;
-	net.score += net.calc([-1,  1]) < 0 ? 1 : 0;
-
-	this.report(net)
-});
-
-// Run 300 generations
-// pool.run(300);
-
-
-// Run until function returns true
-pool.run(function(){
-	return this.average > 3.50
+// Run until score is 3.5 or greater
+pool.run({
+	score: 3.5
 });
 
-console.log('Took ' + pool.generation + " generations to reach a score of " + pool.average);
+console.log("Took " + pool.generation + " generations to reach a score of " + pool.average);

package.json

@@ -1,7 +1,7 @@
 {
   "name": "evo-js",
   "version": "0.2.1",
-  "description": "Genetic Algorithm Calculator with ANN",
+  "description": "Evolutionary Algorithm Tool wrapped with ANN",
   "main": "evo.js",
   "scripts": {
     "test": "grunt test"
@@ -33,5 +33,6 @@
     "grunt-contrib-uglify": "~0.5.0",
     "grunt-contrib-watch": "^0.6.1",
     "grunt-execute": "^0.2.2"
-  }
+  },
+  "tonicExampleFilename":"examples/XOR.js"
 }