@stdlib/stats-base-dists-rayleigh-median
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    0.0.7 • Public • Published

    Median

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    Rayleigh distribution median.

    The median for a Rayleigh random variable is

    Median for a Rayleigh distribution.

    where σ > 0 is the scale parameter.

    Installation

    npm install @stdlib/stats-base-dists-rayleigh-median

    Usage

    var median = require( '@stdlib/stats-base-dists-rayleigh-median' );

    median( sigma )

    Returns the median of a Rayleigh distribution with scale parameter sigma.

    var y = median( 9.0 );
    // returns ~10.597
    
    y = median( 1.5 );
    // returns ~1.766

    If provided sigma < 0, the function returns NaN.

    var y = median( -1.0 );
    // returns NaN

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var round = require( '@stdlib/math-base-special-round' );
    var median = require( '@stdlib/stats-base-dists-rayleigh-median' );
    
    var sigma;
    var y;
    var i;
    
    for ( i = 0; i < 10; i++ ) {
        sigma = randu() * 20.0;
        y = median( sigma );
        console.log( 'σ: %d, Median(X,σ): %d', sigma.toFixed( 4 ), y.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.

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    License

    See LICENSE.

    Copyright

    Copyright © 2016-2022. The Stdlib Authors.

    Install

    npm i @stdlib/stats-base-dists-rayleigh-median

    Homepage

    stdlib.io

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    86

    Version

    0.0.7

    License

    Apache-2.0

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    46 kB

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    10

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    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser