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Test if a value is an array-like object containing only probabilities.
A probability is defined as a numeric value on the interval [0,1].
import isProbabilityArray from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-probability-array@esm/index.mjs';You can also import the following named exports from the package:
import { objects, primitives } from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-probability-array@esm/index.mjs';Tests if a value is an array-like object containing only probabilities.
import Number from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-ctor@esm/index.mjs';
import Uint8Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-uint8@esm/index.mjs';
var bool = isProbabilityArray( [ 0.6, 0.5, 0.25 ] );
// returns true
bool = isProbabilityArray( [ 0.6, 0.5, new Number( 0.25 ) ] );
// returns true
bool = isProbabilityArray( new Uint8Array( [ 0, 1 ] ) );
// returns true
bool = isProbabilityArray( [ 3.14, 0.0 ] );
// returns falseTests if a value is an array-like object array containing only primitive probabilities.
import Number from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-ctor@esm/index.mjs';
var bool = isProbabilityArray.primitives( [ 1.0, 0.0, 0.8 ] );
// returns true
bool = isProbabilityArray.primitives( [ 0.9, new Number(1.0) ] );
// returns falseTests if a value is an array-like object array containing only Number objects whose values are probabilities.
import Number from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-ctor@esm/index.mjs';
var bool = isProbabilityArray.objects( [ new Number(1.0), new Number(1.0) ] );
// returns true
bool = isProbabilityArray.objects( [ 1.0, 0.0, 0.6 ] );
// returns false<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import Uint8Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-uint8@esm/index.mjs';
import isProbabilityArray from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-probability-array@esm/index.mjs';
var arr = [ 0.0, 1.0, 0.5 ];
var bool = isProbabilityArray( arr );
// returns true
arr = [ 0.5, 0.25, 0.25 ];
bool = isProbabilityArray( arr );
// returns true
arr = new Uint8Array( [ 0, 0, 1, 0, 1 ] );
bool = isProbabilityArray( arr );
// returns true
arr = [ 3.14, -1.0 ];
bool = isProbabilityArray( arr );
// returns false
bool = isProbabilityArray( [] );
// returns false
bool = isProbabilityArray( null );
// returns false
</script>
</body>
</html>@stdlib/assert-is-array: test if a value is an array.@stdlib/assert-is-probability: test if a value is a probability.
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