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12 lines
363 B
TypeScript
12 lines
363 B
TypeScript
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/**
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* 中央値を求めます
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* @param samples サンプル
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*/
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export default function(samples) {
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if (!samples.length) return 0;
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const numbers = samples.slice(0).sort((a, b) => a - b);
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const middle = Math.floor(numbers.length / 2);
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const isEven = numbers.length % 2 === 0;
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return isEven ? (numbers[middle] + numbers[middle - 1]) / 2 : numbers[middle];
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}
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