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37 lines
811 B
TypeScript
37 lines
811 B
TypeScript
// Loaded from https://deno.land/x/ramda@v0.27.2/source/median.js
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import _curry1 from './internal/_curry1.js';
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import mean from './mean.js';
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/**
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* Returns the median of the given list of numbers.
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*
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* @func
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* @memberOf R
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* @since v0.14.0
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* @category Math
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* @sig [Number] -> Number
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* @param {Array} list
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* @return {Number}
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* @see R.mean
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* @example
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*
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* R.median([2, 9, 7]); //=> 7
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* R.median([7, 2, 10, 9]); //=> 8
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* R.median([]); //=> NaN
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*/
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var median = _curry1(function median(list) {
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var len = list.length;
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if (len === 0) {
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return NaN;
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}
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var width = 2 - len % 2;
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var idx = (len - width) / 2;
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return mean(Array.prototype.slice.call(list, 0).sort(function(a, b) {
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return a < b ? -1 : a > b ? 1 : 0;
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}).slice(idx, idx + width));
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});
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export default median;
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