ml-array-rescale - npm Package Compare versions

Comparing version 1.0.2 to 1.1.0

lib/index.js

		@@ -11,3 +11,6 @@ 'use strict';
		throw new TypeError('input must be an array');
		} else if (input.length === 0) {
		throw new TypeError('input must not be empty');
		}

		let output;
		@@ -23,5 +26,12 @@ if (options.output !== undefined) {

		const currentMin = min(input);
		const currentMax = max(input);

		if (currentMin === currentMax) {
		throw new RangeError('minimum and maximum input values are equal. Cannot rescale a constant array');
		}

		const {
		min: minValue = 0,
		max: maxValue = 1
		min: minValue = options.autoMinMax ? currentMin : 0,
		max: maxValue = options.autoMinMax ? currentMax : 1
		} = options;
		@@ -33,9 +43,2 @@

		const currentMin = min(input);
		const currentMax = max(input);

		if (currentMin === currentMax) {
		throw new RangeError('minimum and maximum input values are equal. Cannot rescale a constant array');
		}

		const factor = (maxValue - minValue) / (currentMax - currentMin);
		@@ -42,0 +45,0 @@ for (var i = 0; i < input.length; i++) {

package.json

		{
		"name": "ml-array-rescale",
		"version": "1.0.2",
		"version": "1.1.0",
		"description": "Rescale an array into a range",
		@@ -5,0 +5,0 @@ "main": "lib/index.js",

src/__tests__/test.js

		@@ -38,8 +38,14 @@ import rescale from '../index';
		expect(() => rescale()).toThrow(/input must be an array/);
		expect(() => rescale([], {output: false})).toThrow(/output option must be an array if specified/);
		expect(() => rescale([], {min: 2})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([], {max: -1})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([], {min: 2, max: 0})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([], {min: 1, max: 1})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([0, 1, 2], {output: false})).toThrow(/output option must be an array if specified/);
		expect(() => rescale([0, 1, 2], {min: 2})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([0, 1, 2], {max: -1})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([0, 1, 2], {min: 2, max: 0})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([0, 1, 2], {min: 1, max: 1})).toThrow(/min option must be smaller than max option/);
		expect(() => rescale([], {min: 0, max: 1})).toThrow(/input must not be empty/);
		});

		it('should work with current min/max', () => {
		expect(rescale([0, 1, 2], {min: 1, autoMinMax: true})).toEqual([1, 1.5, 2]);
		expect(rescale([0, 1, 2], {max: 3, autoMinMax: true})).toEqual([0, 1.5, 3]);
		});
		});

src/index.js

		@@ -7,3 +7,6 @@ import max from 'ml-array-max';
		throw new TypeError('input must be an array');
		} else if (input.length === 0) {
		throw new TypeError('input must not be empty');
		}

		let output;
		@@ -19,5 +22,12 @@ if (options.output !== undefined) {

		const currentMin = min(input);
		const currentMax = max(input);

		if (currentMin === currentMax) {
		throw new RangeError('minimum and maximum input values are equal. Cannot rescale a constant array');
		}

		const {
		min: minValue = 0,
		max: maxValue = 1
		min: minValue = options.autoMinMax ? currentMin : 0,
		max: maxValue = options.autoMinMax ? currentMax : 1
		} = options;
		@@ -29,9 +39,2 @@

		const currentMin = min(input);
		const currentMax = max(input);

		if (currentMin === currentMax) {
		throw new RangeError('minimum and maximum input values are equal. Cannot rescale a constant array');
		}

		const factor = (maxValue - minValue) / (currentMax - currentMin);
		@@ -38,0 +41,0 @@ for (var i = 0; i < input.length; i++) {

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