Takes an array of numbers and calculates some descriptive statistics. 

Takes an array of numbers and calculates some descriptive statistics

andreasmadsen

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{{- packageName}} - npm Package Compare versions

  "description": "Takes an array of numbers and calculates some descriptive statistics",

  "author": "Andreas Madsen <amwebdk@gmail.com>",

    "url": "git://github.com/AndreasMadsen/summary.git"

    Array, Int8Array, Uint8Array, Int16Array, Uint16Array,

    Int32Array, Uint32Array, Float32Array, Float64Array

  if (!(this instanceof Summary)) return new Summary(data, sorted);

  if (array_types.indexOf(data.constructor) === -1) {

    throw TypeError('data must be an array');

// Not all values are in lazy calculated since that wouldn't do any good

    this._data = this._data.sort(function (a, b) { return a - b; });

    for (var i = 0; i < this._length; i++) sum += this._data[i];

    // Count the amount of repeat and update mode variables

    for (var i = 1; i < this._length; i++) {

    this._cache_mean = this.sum() / this._length;

Summary.prototype.quartile = function (prob) {

  if (!this._cache_quartiles.hasOwnProperty(prob)) {

        this._cache_quartiles[prob] = data[0];

test('testing sort method', function (t) {

    summary([2, 3, 7, -2, 0, 1, 1], true).sort(),

    summary([2, 3, 7, -2, 0, 1, 1], false).sort(),

    summary([2, 3, 7, -2, 0, 1, 1]).sort(),

test('testing size method', function (t) {

test('testing sum method', function (t) {

test('testing mode method', function (t) {

    summary([10, 11, 12, 11, 12, 7, 12]).mode(),

    summary([10, 13, 12, 13, 12, 13, 12]).mode(),

test('testing mean method', function (t) {

test('testing quartile method', function (t) {

    2, 27, 10, 29, 16, 8, 5, 19, 2, 2, 18,28,

    7, 28, 28, 25, 19, 14, 18, 21, 25, 29, 7,

test('testing median method', function (t) {

  t.equal(summary(new Int8Array([2, 4])).mean(), 3);

		{
		"name": "summary",
		"description": "Takes an array of numbers and calculates some descriptive statistics",
		"version": "0.3.0",
		"version": "0.3.1",
		"author": "Andreas Madsen <amwebdk@gmail.com>",
		@@ -33,2 +33,2 @@ "main": "./summary.js",
		}
		}
		}


		var array_types = [
		Array, Int8Array, Uint8Array, Int16Array, Uint16Array,
		Int32Array, Uint32Array, Float32Array, Float64Array
		];

		function Summary(data, sorted) {
		if (!(this instanceof Summary)) return new Summary(data, sorted);

		if (!Array.isArray(data)) {
		if (array_types.indexOf(data.constructor) === -1) {
		throw TypeError('data must be an array');
		@@ -7,0 +12,0 @@ }

		@@ -125,1 +125,7 @@
		});

		test('typed array', function (t) {
		t.equal(summary(new Int8Array([2, 4])).mean(), 3);

		t.end();
		});

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