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statistical-methods

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Readme

statistical-methods

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This is an NPM module providing a collection of statistical methods including mean, mode, median, range, variance, standard deviation, sum and product.

To use it, simple install via NPM and include it in your project file.

    var sm = require('statistical-methods');

Then, use the following functions to perform statistical analysis on your data.

    var arr = [ 8, 9, 10, 10, 10, 11, 11, 11, 12, 13];

    console.log(sm.mean(arr));     // 10.5
    console.log(sm.median(arr));   // 10.5
    console.log(sm.mode(arr));     // [10, 11]

    console.log(sm.min(arr));	   // 8
    console.log(sm.max(arr));	   // 13
    console.log(sm.range(arr));    // 5

    console.log(sm.variance(arr)); // 2.0555555555555554,
    console.log(sm.stddev(arr));   // 1.4337208778404378,

    console.log(sm.sum(arr));	   // 105
    console.log(sm.prod(arr));	   // 14949792000

The expected data format for all functions is an array of numbers (integers or floats).