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

    Median

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    Kumaraswamy's double bounded distribution median.

    The median for a Kumaraswamy's double bounded random variable is

    Median for a Kumaraswamy's double bounded distribution.

    where a is the first shape parameter and b the second shape parameter.

    Installation

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

    Usage

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

    median( a, b )

    Returns the median of a Kumaraswamy's double bounded distribution with first shape parameter a and second shape parameter b.

    var v = median( 1.0, 1.0 );
    // returns 0.5
    
    v = median( 4.0, 12.0 );
    // returns ~0.487
    
    v = median( 2.0, 8.0 );
    // returns ~0.288

    If provided NaN as any argument, the function returns NaN.

    var v = median( NaN, 2.0 );
    // returns NaN
    
    v = median( 2.0, NaN );
    // returns NaN

    If provided a <= 0, the function returns NaN.

    var y = median( -1.0, 0.5 );
    // returns NaN
    
    y = median( 0.0, 0.5 );
    // returns NaN

    If provided b <= 0, the function returns NaN.

    var y = median( 0.5, -1.0 );
    // returns NaN
    
    y = median( 0.5, 0.0 );
    // returns NaN

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var median = require( '@stdlib/stats-base-dists-kumaraswamy-median' );
    
    var a;
    var b;
    var v;
    var i;
    
    for ( i = 0; i < 10; i++ ) {
        a = randu() * 10.0;
        b = randu() * 10.0;
        v = median( a, b );
        console.log( 'a: %d, b: %d, Median(X;a,b): %d', a.toFixed( 4 ), b.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.

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    License

    See LICENSE.

    Copyright

    Copyright © 2016-2022. The Stdlib Authors.

    Install

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

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    57

    Version

    0.0.7

    License

    Apache-2.0

    Unpacked Size

    35.8 kB

    Total Files

    10

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser