Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /**
* @license Apache-2.0
*
* Copyright (c) 2023 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';
// MODULES //
var MultiSlice = require( '@stdlib/slice/multi' );
var reverseDimension = require( '@stdlib/ndarray/base/reverse-dimension' );
var slice = require( '@stdlib/ndarray/base/slice' );
var ndims = require( '@stdlib/ndarray/base/ndims' );
// MAIN //
/**
* Returns a view of an input ndarray in which the order of elements along the second-to-last dimension is reversed.
*
* @param {ndarray} x - input array
* @param {boolean} writable - boolean indicating whether a returned array should be writable
* @returns {ndarray} ndarray view
*
* @example
* var ndarray = require( '@stdlib/ndarray/ctor' );
* var getShape = require( '@stdlib/ndarray/shape' );
*
* var buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
* var shape = [ 3, 2 ];
* var strides = [ 2, 1 ];
* var offset = 0;
*
* var x = ndarray( 'generic', buffer, shape, strides, offset, 'row-major' );
* // returns <ndarray>[ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]
*
* var sh = getShape( x );
* // returns [ 3, 2 ]
*
* var y = flipud( x, false );
* // returns <ndarray>[ [ 5.0, 6.0 ], [ 3.0, 4.0 ], [ 1.0, 2.0 ] ]
*
* sh = getShape( y );
* // returns [ 3, 2 ]
*/
function flipud( x, writable ) {
var N = ndims( x );
// Check whether we were provided a zero-dimensional array...
if ( N === 0 ) {
// Nothing to reverse, so just return a new view:
return slice( x, new MultiSlice(), true, writable );
}
// Check whether we were provided a one-dimensional array...
if ( N === 1 ) {
// No second-to-last dimension to reverse, so just return a new view:
return slice( x, new MultiSlice( null ), true, writable );
}
return reverseDimension( x, -2, writable );
}
// EXPORTS //
module.exports = flipud;
|