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x/simplestatistics/src/median_absolute_deviation.js

simple statistics for node & browser javascript
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import median from "./median.js";
/** * The [Median Absolute Deviation](http://en.wikipedia.org/wiki/Median_absolute_deviation) is * a robust measure of statistical * dispersion. It is more resilient to outliers than the standard deviation. * * @param {Array<number>} x input array * @returns {number} median absolute deviation * @example * medianAbsoluteDeviation([1, 1, 2, 2, 4, 6, 9]); // => 1 */function medianAbsoluteDeviation(x) { const medianValue = median(x); const medianAbsoluteDeviations = [];
// Make a list of absolute deviations from the median for (let i = 0; i < x.length; i++) { medianAbsoluteDeviations.push(Math.abs(x[i] - medianValue)); }
// Find the median value of that list return median(medianAbsoluteDeviations);}
export default medianAbsoluteDeviation;