mathjs/test/function/statistics/quantile_seq.test.js

112 lines
5.4 KiB
JavaScript

var assert = require('assert'),
approx = require('../../../tools/approx'),
math = require('../../../index'),
bignumber = math.bignumber,
quantile_seq = math.quantile_seq;
describe('quantile_seq', function() {
it('should return the quantile_seq of a sequence of numbers with number probability', function() {
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0), 1.3);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.1), 1.75);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.2), 2.2);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.25), 2.325);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.3), 2.45);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.4), 2.7);
approx.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.5), 2.9);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.6), 3.1);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.7), 3.2);
approx.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.75), 3.25);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.8), 3.3);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 0.9), 3.5);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, 1), 3.7);
});
it('should return the quantile_seq of a sequence of numbers with BigNumber probability', function() {
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0)), 1.3);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.1)), 1.75);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.2)), 2.2);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.25)), 2.325);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.3)), 2.45);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.4)), 2.7);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.5)), 2.9);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.6)), 3.1);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.7)), 3.2);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.75)), 3.25);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.8)), 3.3);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(0.9)), 3.5);
assert.equal(quantile_seq(3.7, 2.7, 3.3, 1.3, 2.2, 3.1, bignumber(1)), 3.7);
});
it('should return the quantile_seq of a sequence of bignumbers with number probability', function() {
approx.equal(quantile_seq(bignumber(0.5377),bignumber(1.8339),bignumber(-2.2588),bignumber(0.8622),
bignumber(0.3188),bignumber(-1.3077),bignumber(-0.4336),bignumber(0.3426),
bignumber(3.5784),bignumber(2.7694),0.3),
0.09308);
});
it('should return the quantile_seq of a sequence of bignumbers with BigNumber probability', function() {
assert.deepEqual(quantile_seq(bignumber(0.5377),bignumber(1.8339),bignumber(-2.2588),bignumber(0.8622),
bignumber(0.3188),bignumber(-1.3077),bignumber(-0.4336),bignumber(0.3426),
bignumber(3.5784),bignumber(2.7694),bignumber(0.3)),
bignumber(0.09308));
});
it('should return the quantile_seq from an array', function() {
assert.equal(quantile_seq([2,4,6,8,10,12,14], 0.25), 5);
});
it('should return the quantile_seq of units', function() {
assert.deepEqual(quantile_seq([math.unit('5mm'), math.unit('15mm'), math.unit('10mm')], 0.5), math.unit('10mm'));
});
it('should return the quantile_seq from an 1d matrix', function() {
assert.equal(quantile_seq(math.matrix([2,4,6,8,10,12,14]), 0.25), 5);
});
it('should return the quantile_seq from a 2d array', function() {
approx.equal(quantile_seq([
[3.7, 2.7, 3.3],
[1.3, 2.2, 3.1]
], 0.75), 3.25);
});
it('should return the quantile_seq from a 2d matrix', function() {
approx.equal(quantile_seq(math.matrix([
[3.7, 2.7, 3.3],
[1.3, 2.2, 3.1]
]), 0.75), 3.25);
});
it('should throw an error if called with invalid number of arguments', function() {
assert.throws(function() {quantile_seq()});
assert.throws(function() {quantile_seq(2)});
assert.throws(function() {quantile_seq([], 2, 3)});
});
it('should throw an error if called with unsupported type of arguments', function() {
assert.throws(function () {quantile_seq('A', 'C', 'D', 'B')}, math.error.UnsupportedTypeError);
assert.throws(function () {quantile_seq('A', 'C', 'B')}, math.error.UnsupportedTypeError);
assert.throws(function () {quantile_seq(true, false, true)}, math.error.UnsupportedTypeError);
assert.throws(function () {quantile_seq(0, 'B')}, math.error.UnsupportedTypeError);
assert.throws(function () {quantile_seq(math.complex(2,3), math.complex(-1,2))}, TypeError);
});
it('should throw an error if called with an empty array', function() {
assert.throws(function() {quantile_seq([])});
});
it('should not mutate the input', function () {
var a = [3,2,1];
var b = quantile_seq(a, 0.2);
assert.deepEqual(a,[3,2,1]);
});
/*
it('should LaTeX quantile_seq', function () {
var expression = math.parse('quantile_seq(1,2,3,4)');
assert.equal(expression.toTex(), '\\mathrm{quantile}\\left(1,2,3,4\\right)');
});
*/
});