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binaryFactory
Create a factory function for generating pseudorandom values drawn from a binary PRNG.
Installation
npm install @stdlib/random-array-tools-binary-factoryUsage
var binaryFactory = require( '@stdlib/random-array-tools-binary-factory' );binaryFactory( prng, dtypes, dtype )
Returns a factory function for generating pseudorandom values drawn from a binary PRNG.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, 'float64' );
// returns <Function>The function has the following parameters:
- prng: binary pseudorandom number generator.
- dtypes: list of supported output data types.
- dtype: default output array data type.
factory( [param1, param2, ][options] )
Returns a function for generating pseudorandom values drawn from a binary PRNG.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>The function has the following parameters:
- param1: first PRNG parameter.
- param2: second PRNG parameter.
- options: function options.
The function supports the following options:
- prng: pseudorandom number generator which generates uniformly distributed pseudorandom numbers.
- seed: pseudorandom value generator seed.
- state: pseudorandom value generator state.
- copy: boolean indicating whether to copy a provided pseudorandom value generator state.
- dtype: default output array data type. Setting this option overrides the default output array data type provided to the parent function.
If provided PRNG parameters, the function returns a partially applied function for creating arrays, which can be useful when wanting to pass around a parameterized function for array creation.
Full Arity
random( len, param1, param2[, options] )
Returns an array of pseudorandom values drawn from a binary PRNG.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var v = random( 10, 2.0, 5.0 );
// returns <Float64Array>The function has the following parameters:
- len: output array length.
- param1: first PRNG parameter.
- param2: second PRNG parameter.
- options: function options.
The function accepts the following options:
- dtype: output array data type. Setting this option overrides the default output array data type.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var v = random( 10, 2.0, 5.0, {
'dtype': 'float32'
});
// returns <Float32Array>random.assign( param1, param2, out )
Fills an array with pseudorandom values drawn from a binary PRNG.
var arcsine = require( '@stdlib/random-base-arcsine' );
var zeros = require( '@stdlib/array-zeros' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var out = zeros( 10, 'float64' );
// returns <Float64Array>
var v = random.assign( 2.0, 5.0, out );
// returns <Float64Array>
var bool = ( out === v );
// returns trueThe method has the following parameters:
- param1: first PRNG parameter.
- param2: second PRNG parameter.
- out: output array.
Partial Application
random( len[, options] )
Returns an array of pseudorandom values drawn from a binary PRNG.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory( 2.0, 5.0 );
// returns <Function>
var v = random( 10 );
// returns <Float64Array>
v = random( 10 );
// returns <Float64Array>The function has the following parameters:
- len: output array length.
- options: function options.
The function accepts the following options:
- dtype: output array data type. Setting this option overrides the default output array data type.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory( 2.0, 5.0 );
// returns <Function>
var v = random( 10, {
'dtype': 'float32'
});
// returns <Float32Array>
v = random( 10, {
'dtype': 'generic'
});
// returns [...]random.assign( out )
Fills an array with pseudorandom values drawn from a binary PRNG.
var arcsine = require( '@stdlib/random-base-arcsine' );
var zeros = require( '@stdlib/array-zeros' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory( 2.0, 5.0 );
// returns <Function>
var out = zeros( 10, 'float64' );
// returns <Float64Array>
var v = random.assign( out );
// returns <Float64Array>
var bool = ( out === v );
// returns trueThe method has the following parameters:
- out: output array.
random.PRNG
The underlying pseudorandom number generator.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var prng = random.PRNG;
// returns <Function>random.seed
The value used to seed the underlying pseudorandom number generator.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var seed = random.seed;
// returns <Uint32Array>If the factory function is provided a PRNG for uniformly distributed numbers, the associated property value on the returned function is null.
var minstd = require( '@stdlib/random-base-minstd-shuffle' ).normalized;
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory({
'prng': minstd
});
// returns <Function>
var seed = random.seed;
// returns nullrandom.seedLength
Length of underlying pseudorandom number generator seed.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var len = random.seedLength;
// returns <number>If the factory function is provided a PRNG for uniformly distributed numbers, the associated property value on the returned function is null.
var minstd = require( '@stdlib/random-base-minstd-shuffle' ).normalized;
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory({
'prng': minstd
});
// returns <Function>
var len = random.seedLength;
// returns nullrandom.state
Writable property for getting and setting the underlying pseudorandom number generator state.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var state = random.state;
// returns <Uint32Array>If the factory function is provided a PRNG for uniformly distributed numbers, the associated property value on the returned function is null.
var minstd = require( '@stdlib/random-base-minstd-shuffle' ).normalized;
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory({
'prng': minstd
});
// returns <Function>
var state = random.state;
// returns nullrandom.stateLength
Length of underlying pseudorandom number generator state.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var len = random.stateLength;
// returns <number>If the factory function is provided a PRNG for uniformly distributed numbers, the associated property value on the returned function is null.
var minstd = require( '@stdlib/random-base-minstd-shuffle' ).normalized;
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory({
'prng': minstd
});
// returns <Function>
var len = random.stateLength;
// returns nullrandom.byteLength
Size (in bytes) of underlying pseudorandom number generator state.
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory();
// returns <Function>
var sz = random.byteLength;
// returns <number>If the factory function is provided a PRNG for uniformly distributed numbers, the associated property value on the returned function is null.
var minstd = require( '@stdlib/random-base-minstd-shuffle' ).normalized;
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = [ 'float64', 'float32', 'generic' ];
var factory = binaryFactory( arcsine, dtypes, dtypes[ 0 ] );
// returns <Function>
var random = factory({
'prng': minstd
});
// returns <Function>
var sz = random.byteLength;
// returns nullExamples
var arcsine = require( '@stdlib/random-base-arcsine' );
var dtypes = require( '@stdlib/array-dtypes' );
var binaryFactory = require( '@stdlib/random-array-tools-binary-factory' );
var dt = dtypes( 'real_floating_point_and_generic' );
var factory = binaryFactory( arcsine, dt, 'float64' );
// returns <Function>
var random = factory();
// returns <Function>
var x = random( 10, 2.0, 5.0 );
// returns <Float64Array>
x = random( 10, 2.0, 5.0, {
'dtype': 'float32'
});
// returns <Float32Array>
x = random( 10, 2.0, 5.0, {
'dtype': 'generic'
});
// returns [...]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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