@stdlib/stats-base-dists-degenerate-pmf
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    0.0.6 • Public • Published

    Probability Mass Function

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    Degenerate distribution probability mass function (PMF).

    Installation

    npm install @stdlib/stats-base-dists-degenerate-pmf

    Usage

    var pmf = require( '@stdlib/stats-base-dists-degenerate-pmf' );

    pmf( x, mu )

    Evaluates the PMF of a degenerate distribution centered at mu.

    var y = pmf( 2.0, 8.0 );
    // returns 0.0
    
    y = pmf( 8.0, 8.0 );
    // returns 1.0

    pmf.factory( mu )

    Returns a function for evaluating the PMF of a degenerate distribution centered at mu.

    var mypmf = pmf.factory( 10.0 );
    
    var y = mypmf( 10.0 );
    // returns 1.0
    
    y = mypmf( 5.0 );
    // returns 0.0
    
    y = mypmf( 12.0 );
    // returns 0.0

    Examples

    var randu = require( '@stdlib/random-base-randu' );
    var round = require( '@stdlib/math-base-special-round' );
    var pmf = require( '@stdlib/stats-base-dists-degenerate-pmf' );
    
    var mu;
    var x;
    var y;
    var i;
    
    for ( i = 0; i < 100; i++ ) {
        x = round( randu()*5.0 );
        mu = round( randu()*5.0 );
        y = pmf( x, mu );
        console.log( 'x: %d, µ: %d, P(X=x;µ): %d', x, mu, y );
    }

    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 © 2016-2021. The Stdlib Authors.

    Install

    npm i @stdlib/stats-base-dists-degenerate-pmf

    Homepage

    stdlib.io

    DownloadsWeekly Downloads

    49

    Version

    0.0.6

    License

    Apache-2.0

    Unpacked Size

    41 kB

    Total Files

    10

    Last publish

    Collaborators

    • stdlib-bot
    • kgryte
    • planeshifter
    • rreusser