+ Press n or j to go to the next uncovered block, b, p or k for the previous block. +
+ ++ 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 | 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'; + +/** +* Return a view of an input ndarray in which the order of elements along the second-to-last dimension is reversed. +* +* @module @stdlib/ndarray/base/flipud +* +* @example +* var ndarray = require( '@stdlib/ndarray/ctor' ); +* var ndarray2array = require( '@stdlib/ndarray/to-array' ); +* var flipud = require( '@stdlib/ndarray/base/flipud' ); +* +* 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> +* +* var sh = x.shape; +* // returns [ 3, 2 ] +* +* var arr = ndarray2array( x ); +* // returns [ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ] +* +* var y = flipud( x, false ); +* // returns <ndarray> +* +* sh = y.shape; +* // returns [ 3, 2 ] +* +* arr = ndarray2array( y ); +* // returns [ [ 5.0, 6.0 ], [ 3.0, 4.0 ], [ 1.0, 2.0 ] ] +*/ + +// MODULES // + +var main = require( './main.js' ); + + +// EXPORTS // + +module.exports = main; + |
+ 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 +80 +81 +82 +83 +84 +85 | 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 +1x +11x +11x +11x +11x +11x +4x +4x +4x +7x +11x +3x +3x +3x +4x +11x +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 ndarray2array = require( '@stdlib/ndarray/to-array' );
+*
+* 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>
+*
+* var sh = x.shape;
+* // returns [ 3, 2 ]
+*
+* var arr = ndarray2array( x );
+* // returns [ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]
+*
+* var y = flipud( x, false );
+* // returns <ndarray>
+*
+* sh = y.shape;
+* // returns [ 3, 2 ]
+*
+* arr = ndarray2array( y );
+* // returns [ [ 5.0, 6.0 ], [ 3.0, 4.0 ], [ 1.0, 2.0 ] ]
+*/
+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;
+ |