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* Add `.js` extension to source file imports * Specify package `exports` in `package.json` Specify package type as `commonjs` (It's good to be specific) * Move all compiled scripts into `lib` directory Remove ./number.js (You can use the compiled ones in `./lib/*`) Tell node that the `esm` directory is type `module` and enable tree shaking. Remove unused files from packages `files` property * Allow importing of package.json * Make library ESM first * - Fix merge conflicts - Refactor `bundleAny` into `defaultInstance.js` and `browserBundle.cjs` - Refactor unit tests to be able to run with plain nodejs (no transpiling) - Fix browser examples * Fix browser and browserstack tests * Fix running unit tests on Node 10 (which has no support for modules) * Fix node.js examples (those are still commonjs) * Remove the need for `browserBundle.cjs` * Generate minified bundle only * [Security] Bump node-fetch from 2.6.0 to 2.6.1 (#1963) Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.6.0 to 2.6.1. **This update includes a security fix.** - [Release notes](https://github.com/bitinn/node-fetch/releases) - [Changelog](https://github.com/node-fetch/node-fetch/blob/master/docs/CHANGELOG.md) - [Commits](https://github.com/bitinn/node-fetch/compare/v2.6.0...v2.6.1) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com> * Cleanup console.log * Add integration tests to test the entry points (commonjs/esm, full/number only) * Create backward compatibility error messages in the files moved/removed since v8 * Describe breaking changes in HISTORY.md * Bump karma from 5.2.1 to 5.2.2 (#1965) Bumps [karma](https://github.com/karma-runner/karma) from 5.2.1 to 5.2.2. - [Release notes](https://github.com/karma-runner/karma/releases) - [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md) - [Commits](https://github.com/karma-runner/karma/compare/v5.2.1...v5.2.2) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com> Co-authored-by: Lee Langley-Rees <lee@greenimp.co.uk> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
72 lines
3.1 KiB
JavaScript
72 lines
3.1 KiB
JavaScript
import assert from 'assert'
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import approx from '../../../../tools/approx.js'
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import math from '../../../../src/defaultInstance.js'
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const variance = math.expression.transform.variance
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describe('variance', function () {
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const inputMatrix = [ // this is a 4x3x2 matrix, full test coverage
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[[10, 200], [30, 40], [50, 60]],
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[[70, 80], [90, 100], [180, 120]],
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[[130, 140], [160, 150], [170, 110]],
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[[190, 20], [210, 220], [230, 240]]
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]
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it('should return the variance value along a dimension on a matrix with one based indicies', function () {
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assert.deepStrictEqual(variance([
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[2, 6],
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[4, 10]], 2), [8, 18])
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assert.deepStrictEqual(variance([
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[2, 6],
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[4, 10]], 1), [2, 8])
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assert.deepStrictEqual(variance(inputMatrix, 1),
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[[6000, 6000], [6225, 5825], [5825, 5825]])
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assert.deepStrictEqual(variance(inputMatrix, 2),
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[[400, 7600], [3433.3333333333335, 400], [433.33333333333337, 433.33333333333337], [400, 14800]])
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assert.deepStrictEqual(variance(inputMatrix, 3),
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[[18050, 50, 50], [50, 50, 1800], [50, 50, 1800], [14450, 50, 50]])
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})
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it('should throw an error if called with an invalid one based index', function () {
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assert.throws(function () { variance(inputMatrix, 0) }, /Index out of range/)
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assert.throws(function () { variance(inputMatrix, 4) }, /Index out of range/)
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})
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it('should throw an error if called with invalid type of arguments', function () {
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assert.throws(function () { variance(new Date(), 2) }, /Cannot calculate variance, unexpected type of argument/)
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assert.throws(function () { variance(2, 3, null) }, /Cannot calculate variance, unexpected type of argument/)
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assert.throws(function () { variance([2, 3, null]) }, /Cannot calculate variance, unexpected type of argument/)
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assert.throws(function () { variance([[2, 4, 6], [1, 3, 5]], 'biased', 0) }, /Cannot convert "biased" to a number/)
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assert.throws(function () { variance([[2, 4, 6], [1, 3, 5]], 0, new Date()) }, /Cannot calculate variance, unexpected type of argument/)
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})
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it('should throw an error if called with an empty array', function () {
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assert.throws(function () { variance([]) })
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})
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it('should LaTeX var', function () {
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const expression = math.parse('variance(1,2,3)')
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assert.strictEqual(expression.toTex(), '\\mathrm{Var}\\left(1,2,3\\right)')
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})
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it('should compute the variance of quantities with units', function () {
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const a = math.unit(10, 'cm')
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const b = math.unit(20, 'cm')
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const c = math.unit(50, 'cm^2')
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approx.equal(variance([a, b]).toNumber('cm^2'), c.toNumber('cm^2'))
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})
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it('should compute the variance of quantities with compatible units', function () {
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const a = math.unit(1, 'm')
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const b = math.unit(50, 'cm')
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const c = math.unit(1250, 'cm^2')
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approx.equal(variance([a, b]).toNumber('cm^2'), c.toNumber('cm^2'))
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})
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it('should not compute the variance of quantities with incompatible units', function () {
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const a = math.unit(1, 'm')
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const b = math.unit(50, 'kg')
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assert.throws(function () { variance([a, b]) }, /Units do not match/)
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})
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})
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