50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
|
/**
|
||
|
|
* @license Apache-2.0
|
||
|
|
*
|
||
|
|
* Copyright (c) 2018 The Stdlib Authors.
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
// MAIN //
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepends singleton dimensions in order to satisfy a minimum number of dimensions.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {NonNegativeInteger} ndims - number of dimensions
|
||
|
|
* @param {Array} shape - array dimensions
|
||
|
|
* @param {NonNegativeInteger} ndmin - minimum number of dimensions
|
||
|
|
* @returns {Array} output shape array
|
||
|
|
*/
|
||
|
|
function expandShape( ndims, shape, ndmin ) {
|
||
|
|
var out;
|
||
|
|
var i;
|
||
|
|
|
||
|
|
out = [];
|
||
|
|
for ( i = 0; i < ndmin-ndims; i++ ) {
|
||
|
|
out.push( 1 );
|
||
|
|
}
|
||
|
|
for ( i = 0; i < ndims; i++ ) {
|
||
|
|
out.push( shape[ i ] );
|
||
|
|
}
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// EXPORTS //
|
||
|
|
|
||
|
|
module.exports = expandShape;
|