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x/simplestatistics/test/relative_error.js

simple statistics for node & browser javascript
simple-statistics/simple-statistics
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/* eslint no-shadow: 0 */
const test = require("tap").test;const ss = require("../dist/simple-statistics.js");
test("relative error", function (t) {    t.test("equal values", function (t) {        t.equal(ss.relativeError(14.5, 14.5), 0.0);        t.end();    });
    t.test("negative values", function (t) {        t.equal(ss.relativeError(-4, -5), 0.2);        t.end();    });
    t.test("correct handling of zero", function (t) {        t.equal(ss.relativeError(10101, 0), Infinity);        t.end();    });
    t.test("correct handling of double zero", function (t) {        t.equal(ss.relativeError(0, 0), 0);        t.end();    });
    t.end();});