time-to-botec/js/node_modules/@stdlib/stats/anova1/lib/mean.js
NunoSempere b6addc7f05 feat: add the node modules
Necessary in order to clearly see the squiggle hotwiring.
2022-12-03 12:44:49 +00:00

47 lines
1011 B
JavaScript

/**
* @license Apache-2.0
*
* Copyright (c) 2018 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';
/**
* Computes the arithmetic mean of a numeric array.
*
* @private
* @param {NumericArray} arr - input array
* @returns {number} arithmetic mean
*/
function mean( arr ) {
var delta;
var len;
var mu;
var i;
mu = 0.0;
len = arr.length;
for ( i = 0; i < len; i++ ) {
delta = arr[ i ] - mu;
mu += delta / (i+1);
}
return mu;
}
// EXPORTS //
module.exports = mean;