Nanoscale Parts Manufacturing

    compute-idr

    1.0.1 • Public • Published

    Interdecile Range

    NPM version Build Status Coverage Status Dependencies

    Computes the interdecile range (idr) for an array of values.

    Installation

    $ npm install compute-idr

    For use in the browser, use browserify.

    Usage

    To use the module,

    var idr = require( 'compute-idr' );

    idr( arr[, opts] )

    Computes the interdecile range provided an input array.

    var unsorted = [ 8, 2, 3, 9, 5, 1, 4, 10, 7, 0, 6 ];
     
    var r = idr( unsorted );
    // returns 8

    If the input array is already sorted in ascending order, set the sorted flag to true.

    var sorted = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ];
     
    var r = idr( sorted, {'sorted': true} );
    // returns 8

    Additional options are the same as for the quantile module.

    Examples

    var data = new Array( 100 );
     
    for ( var i = 0; i < data.length; i++ ) {
        data[ i ] = Math.round( Math.random()*100 );
    }
     
    console.log( idr( data ) );

    To run the example code from the top-level application directory,

    $ node ./examples/index.js

    Notes

    If the input array is not sorted in ascending order, the function is O( N log( N ) ). If the input array is sorted, the function is O(1).

    Tests

    Unit

    Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:

    $ make test

    All new feature development should have corresponding unit tests to validate correct functionality.

    Test Coverage

    This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:

    $ make test-cov

    Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,

    $ make view-cov

    License

    MIT license.


    Copyright

    Copyright © 2014. Rebekah Smith.

    Install

    npm i compute-idr

    DownloadsWeekly Downloads

    166

    Version

    1.0.1

    License

    none

    Last publish

    Collaborators

    • kgryte