@stdlib/stats-base-dists-degenerate-stdev
v0.2.2
Published
Degenerate distribution standard deviation.
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Standard Deviation
Degenerate distribution standard deviation.
The variance for a degenerate random variable is
where μ
is the constant value of the distribution.
Installation
npm install @stdlib/stats-base-dists-degenerate-stdev
Usage
var stdev = require( '@stdlib/stats-base-dists-degenerate-stdev' );
stdev( mu )
Returns the standard deviation of a degenerate distribution with constant value mu
.
var v = stdev( 10.0 );
// returns 0.0
v = stdev( -0.5 );
// returns 0.0
v = stdev( NaN );
// returns NaN
Examples
var randu = require( '@stdlib/random-base-randu' );
var stdev = require( '@stdlib/stats-base-dists-degenerate-stdev' );
var mu;
var v;
var i;
for ( i = 0; i < 10; i++ ) {
mu = randu();
v = stdev( mu );
console.log( 'µ: %d, SD(X;µ): %d', mu.toFixed( 4 ), v.toFixed( 4 ) );
}
Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.