34 lines
980 B
JavaScript
34 lines
980 B
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 calculateEuclideanDistanceTSNE (source, target, properties, normArgs) {
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var dotProduct = 0.0,
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sumX = 0.0,
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sumY = 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 (source.hasOwnProperty(property) && target.hasOwnProperty(property) &&
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property.toLowerCase() !== 'class') {
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var s = source[property],
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t = target[property];
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dotProduct += s * t;
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sumX += s * s;
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sumY += t * t;
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}
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}
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// console.log("Dot", dotProduct);
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// console.log((-2 * dotProduct) + sumX + sumY);
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return -2 * dotProduct + sumX + sumY;
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}
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