deno.land / x / simplestatistics@v7.8.3 / test / sample_kurtosis.test.js
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475/* eslint no-shadow: 0 */
const test = require("tap").test;const ss = require("../dist/simple-statistics.js");
test("sample kurtosis", function (t) { t.test("the kurtosis of an empty sample is null", function (t) { const data = []; t.throws(function () { ss.sampleKurtosis(data); }); t.end(); });
t.test("the kurtosis of an sample with one number is null", function (t) { const data = [1]; t.throws(function () { ss.sampleKurtosis(data); }); t.end(); });
t.test("the kurtosis of an sample with two numbers is null", function (t) { const data = [1, 2]; t.throws(function () { ss.sampleKurtosis(data); }); t.end(); });
t.test( "the kurtosis of an sample with three numbers is null", function (t) { const data = [1, 2, 3]; t.throws(function () { ss.sampleKurtosis(data); }); t.end(); } );
t.test("can calculate the kurtosis of SAS example 1", function (t) { // Data and answer taken from KURTOSIS function documentation at // https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245906.htm const data = [5, 9, 3, 6]; t.equal(+ss.sampleKurtosis(data).toPrecision(10), 0.928); t.end(); });
t.test("can calculate the kurtosis of SAS example 2", function (t) { // Data and answer taken from KURTOSIS function documentation at // https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245906.htm const data = [5, 8, 9, 6]; t.equal(+ss.sampleKurtosis(data).toPrecision(10), -3.3); t.end(); });
t.test("can calculate the kurtosis of SAS example 3", function (t) { // Data and answer taken from KURTOSIS function documentation at // https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245906.htm const data = [8, 9, 6, 1]; t.equal(+ss.sampleKurtosis(data).toPrecision(10), 1.5); t.end(); });
t.test("can calculate the kurtosis of SAS example 4", function (t) { // Data and answer taken from KURTOSIS function documentation at // https://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000245906.htm const data = [8, 1, 6, 1]; t.equal(+ss.sampleKurtosis(data).toPrecision(10), -4.483379501); t.end(); }); t.end();});
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