tamda/dist/number/median.js

Practical functional programming library for TypeScript

import { infer } from '../function/infer';
import { sort } from '../list/sort';
export function median() {
    return inferred.apply(undefined, arguments);
}
const inferred = infer((array) => {
    const sorted = sort(array);
    const odd = sorted.length % 2;
    return odd ? middle(sorted) : middleMean(sorted);
});
function middleLeft(array) {
    return array[array.length / 2 - 1];
}
function middleRight(array) {
    return array[array.length / 2];
}
function middleMean(array) {
    return (middleLeft(array) + middleRight(array)) / 2;
}
function middle(array) {
    return array[(array.length - 1) / 2];
}
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