intelligence
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Machine learning library written in javascript
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<h1 class="page-title">Source: genetic/geneFactories.js</h1>
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<pre class="prettyprint source linenums"><code>var utils = require('./../infrastructure/utils');
var LinearFunctionNode = require('./linear/linearFunctionNode').LinearFunctionNode;
var LinearConditionalNode = require('./linear/linearConditionalNode').LinearConditionalNode;
/**
* Returns a random number between 0 and 1
* @returns {number} A random number between 0 and 1
*/
exports.randomNumber = function () {
return utils.random();
};
/**
* Returns a random binary number
* @returns {number} A random binary number
*/
exports.binaryNumber = function () {
return utils.random() < 0.5 ? 0 : 1;
};
/**
* Returns a random binary string
* @returns {number} A random binary string
*/
exports.binaryString = function () {
return utils.random() < 0.5 ? '0' : '1';
};
/**
* Returns a random letter in the alphabet, including uppercase characters and whitespace
* @returns {string} A random letter in the alphabet
*/
exports.alphabet = function () {
var letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz '.split('');
return letters[utils.randBetween(0, letters.length)];
};
/**
* Returns a random linear node for linear genetic programming
* @param {LinearIndividual} A linear individual to create a node for
* @returns {LinearGPNode} A random linear node
*/
exports.linearNode = function (individual) {
var options = individual.options;
var totalFunctions = options.functionSet.length + options.conditionalSet.length;
var functionProbability = options.functionSet.length / totalFunctions;
if (utils.random() < functionProbability) {
var func = utils.selectRandom(options.functionSet)
return new LinearFunctionNode(func, options.registerSet);
} else {
var func = utils.selectRandom(options.conditionalSet)
return new LinearConditionalNode(func, options.registerSet);
}
};</code></pre>
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<h2><a href="index.html">Index</a></h2><h3>Classes</h3><ul><li><a href="Individual.html">Individual</a></li><li><a href="LinearConditionalNode.html">LinearConditionalNode</a></li><li><a href="LinearFunctionNode.html">LinearFunctionNode</a></li><li><a href="LinearGPNode.html">LinearGPNode</a></li><li><a href="LinearIndividual.html">LinearIndividual</a></li><li><a href="Population.html">Population</a></li><li><a href="RegisterReference.html">RegisterReference</a></li><li><a href="RegisterSet.html">RegisterSet</a></li></ul><h3>Global</h3><ul><li><a href="global.html#alphabet">alphabet</a></li><li><a href="global.html#arrayEqual">arrayEqual</a></li><li><a href="global.html#binaryNumber">binaryNumber</a></li><li><a href="global.html#binaryString">binaryString</a></li><li><a href="global.html#createCalculation">createCalculation</a></li><li><a href="global.html#createConstant">createConstant</a></li><li><a href="global.html#createInput">createInput</a></li><li><a href="global.html#createOutput">createOutput</a></li><li><a href="global.html#formatString">formatString</a></li><li><a href="global.html#fpEqual">fpEqual</a></li><li><a href="global.html#inherits">inherits</a></li><li><a href="global.html#linearNode">linearNode</a></li><li><a href="global.html#onePointFixed">onePointFixed</a></li><li><a href="global.html#onePointVariable">onePointVariable</a></li><li><a href="global.html#randBetween">randBetween</a></li><li><a href="global.html#random">random</a></li><li><a href="global.html#randomNumber">randomNumber</a></li><li><a href="global.html#rank">rank</a></li><li><a href="global.html#rouletteWheel">rouletteWheel</a></li><li><a href="global.html#selectRandom">selectRandom</a></li><li><a href="global.html#swapGenes">swapGenes</a></li><li><a href="global.html#tournament">tournament</a></li><li><a href="global.html#twoPointFixed">twoPointFixed</a></li><li><a href="global.html#twoPointVariable">twoPointVariable</a></li><li><a href="global.html#uniform">uniform</a></li><li><a href="global.html#validateFixedLength">validateFixedLength</a></li><li><a href="global.html#validateMinimumLength">validateMinimumLength</a></li><li><a href="global.html#validateVariableLength">validateVariableLength</a></li></ul>
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-alpha9</a> on Sat Aug 16 2014 23:33:39 GMT+0100 (GMT Summer Time)
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