33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
/**
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* Calculate the distances by using the numbers, strings and dates.
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* @param {node} source
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* @param {node} target
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* @param {array} properties - the properties of the nodes.
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* @return {number} the distance between source and target nodes.
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*/
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function calculateEuclideanDistance(source, target, properties, normArgs) {
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var sumDiff = 0.0;
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// console.log(normArgs);
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// Iterate through every column of data
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for (var i = 0; i < properties.length; i++) {
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property = properties[i];
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if (property.toLowerCase() !== "class" && property.toLowerCase() !== "app" && property.toLowerCase() !== "user" && property.toLowerCase() !== "weekday") {
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var s = source[property],
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t = target[property];
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if (normArgs.sig[i] !== 0) {
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s = (s - normArgs.avg[i]) / (2.0 * normArgs.sig[i]);
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t = (t - normArgs.avg[i]) / (2.0 * normArgs.sig[i]);
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}
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sumDiff += (s - t) * (s - t);
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}
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}
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// console.log(Math.sqrt(sumDiff)/cols);
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// console.log(cols);
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// sumDiff = Math.sqrt(sumDiff);
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// console.log(sumDiff);
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return Math.sqrt(sumDiff);
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}
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