Package Exports
- @stdlib/ndarray-base-nonsingleton-dimensions
- @stdlib/ndarray-base-nonsingleton-dimensions/dist
- @stdlib/ndarray-base-nonsingleton-dimensions/dist/index.js
- @stdlib/ndarray-base-nonsingleton-dimensions/lib/index.js
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stdlib/ndarray-base-nonsingleton-dimensions) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
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Non-Singleton Dimensions
Return the number of non-singleton dimensions.
Installation
npm install @stdlib/ndarray-base-nonsingleton-dimensionsUsage
var nonsingletonDimensions = require( '@stdlib/ndarray-base-nonsingleton-dimensions' );nonsingletonDimensions( shape )
Returns the number of non-singleton dimensions.
var n = nonsingletonDimensions( [ 3, 1, 3 ] );
// returns 2Notes
- A singleton dimension is a dimension whose size is equal to
1.
Examples
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' );
var nonsingletonDimensions = require( '@stdlib/ndarray-base-nonsingleton-dimensions' );
var shape;
var n;
var i;
shape = [ 0, 0, 0 ];
for ( i = 0; i < 100; i++ ) {
shape[ 0 ] = discreteUniform( 1, 5 );
shape[ 1 ] = discreteUniform( 1, 5 );
shape[ 2 ] = discreteUniform( 1, 5 );
n = nonsingletonDimensions( shape );
console.log( 'shape: %s. non-singleton dimensions: %d.', shape.join( 'x' ), n );
}C APIs
Usage
#include "stdlib/ndarray/base/nonsingleton_dimensions.h"stdlib_ndarray_nonsingleton_dimensions( ndims, *shape )
Returns the number of non-singleton dimensions.
int64_t ndims = 2;
int64_t shape[] = { 10, 1 };
int64_t n = stdlib_ndarray_nonsingleton_dimensions( ndims, shape );
// returns 1The function accepts the following arguments:
- ndims:
[in] int64_tnumber of dimensions. - shape:
[in] int64_t*array shape.
int64_t stdlib_ndarray_nonsingleton_dimensions( int64_t ndims, int64_t *shape );Examples
#include "stdlib/ndarray/base/nonsingleton_dimensions.h"
#include <stdio.h>
#include <inttypes.h>
int main( void ) {
int64_t shape[] = { 10, 3, 1, 1, 5 };
int64_t n = stdlib_ndarray_nonsingleton_dimensions( 5, shape );
printf( "shape: %"PRId64"x%"PRId64"x%"PRId64"x%"PRId64"x%"PRId64". non-singleton dimensions: %"PRId64"\n", shape[ 0 ], shape[ 1 ], shape[ 2 ], shape[ 3 ], shape[ 4 ], n );
}Notice
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For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
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