131 lines
3.6 KiB
JavaScript
131 lines
3.6 KiB
JavaScript
import { isBigNumber } from '../../utils/is.js';
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import { isInteger } from '../../utils/number.js';
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import { resize } from '../../utils/array.js';
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import { factory } from '../../utils/factory.js';
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var name = 'ones';
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var dependencies = ['typed', 'config', 'matrix', 'BigNumber'];
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export var createOnes = /* #__PURE__ */factory(name, dependencies, _ref => {
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var {
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typed,
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config,
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matrix,
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BigNumber
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} = _ref;
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/**
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* Create a matrix filled with ones. The created matrix can have one or
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* multiple dimensions.
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*
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* Syntax:
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*
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* math.ones(m)
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* math.ones(m, format)
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* math.ones(m, n)
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* math.ones(m, n, format)
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* math.ones([m, n])
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* math.ones([m, n], format)
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* math.ones([m, n, p, ...])
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* math.ones([m, n, p, ...], format)
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*
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* Examples:
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*
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* math.ones(3) // returns [1, 1, 1]
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* math.ones(3, 2) // returns [[1, 1], [1, 1], [1, 1]]
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* math.ones(3, 2, 'dense') // returns Dense Matrix [[1, 1], [1, 1], [1, 1]]
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*
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* const A = [[1, 2, 3], [4, 5, 6]]
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* math.ones(math.size(A)) // returns [[1, 1, 1], [1, 1, 1]]
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*
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* See also:
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*
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* zeros, identity, size, range
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*
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* @param {...number | Array} size The size of each dimension of the matrix
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* @param {string} [format] The Matrix storage format
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*
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* @return {Array | Matrix | number} A matrix filled with ones
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*/
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return typed('ones', {
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'': function _() {
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return config.matrix === 'Array' ? _ones([]) : _ones([], 'default');
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},
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// math.ones(m, n, p, ..., format)
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// TODO: more accurate signature '...number | BigNumber, string' as soon as typed-function supports this
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'...number | BigNumber | string': function numberBigNumberString(size) {
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var last = size[size.length - 1];
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if (typeof last === 'string') {
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var format = size.pop();
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return _ones(size, format);
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} else if (config.matrix === 'Array') {
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return _ones(size);
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} else {
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return _ones(size, 'default');
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}
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},
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Array: _ones,
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Matrix: function Matrix(size) {
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var format = size.storage();
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return _ones(size.valueOf(), format);
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},
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'Array | Matrix, string': function ArrayMatrixString(size, format) {
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return _ones(size.valueOf(), format);
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}
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});
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/**
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* Create an Array or Matrix with ones
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* @param {Array} size
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* @param {string} [format='default']
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* @return {Array | Matrix}
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* @private
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*/
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function _ones(size, format) {
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var hasBigNumbers = _normalize(size);
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var defaultValue = hasBigNumbers ? new BigNumber(1) : 1;
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_validate(size);
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if (format) {
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// return a matrix
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var m = matrix(format);
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if (size.length > 0) {
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return m.resize(size, defaultValue);
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}
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return m;
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} else {
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// return an Array
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var arr = [];
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if (size.length > 0) {
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return resize(arr, size, defaultValue);
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}
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return arr;
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}
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} // replace BigNumbers with numbers, returns true if size contained BigNumbers
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function _normalize(size) {
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var hasBigNumbers = false;
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size.forEach(function (value, index, arr) {
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if (isBigNumber(value)) {
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hasBigNumbers = true;
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arr[index] = value.toNumber();
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}
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});
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return hasBigNumbers;
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} // validate arguments
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function _validate(size) {
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size.forEach(function (value) {
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if (typeof value !== 'number' || !isInteger(value) || value < 0) {
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throw new Error('Parameters in function ones must be positive integers');
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}
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});
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}
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}); |