54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
/**
|
|
* @license Apache-2.0
|
|
*
|
|
* Copyright (c) 2020 The Stdlib Authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
/**
|
|
* Compute the variance of a strided array using a one-pass textbook algorithm.
|
|
*
|
|
* @module @stdlib/stats/base/variancetk
|
|
*
|
|
* @example
|
|
* var variancetk = require( '@stdlib/stats/base/variancetk' );
|
|
*
|
|
* var x = [ 1.0, -2.0, 2.0 ];
|
|
* var N = x.length;
|
|
*
|
|
* var v = variancetk( N, 1, x, 1 );
|
|
* // returns ~4.3333
|
|
*
|
|
* @example
|
|
* var floor = require( '@stdlib/math/base/special/floor' );
|
|
* var variancetk = require( '@stdlib/stats/base/variancetk' );
|
|
*
|
|
* var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ];
|
|
* var N = floor( x.length / 2 );
|
|
*
|
|
* var v = variancetk.ndarray( N, 1, x, 2, 1 );
|
|
* // returns 6.25
|
|
*/
|
|
|
|
// MODULES //
|
|
|
|
var variancetk = require( './main.js' );
|
|
|
|
|
|
// EXPORTS //
|
|
|
|
module.exports = variancetk;
|