time-to-botec/squiggle/node_modules/@stdlib/stats/incr/mmaape/lib/index.js

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/**
* @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';
/**
* Compute a moving mean arctangent absolute percentage error incrementally.
*
* @module @stdlib/stats/incr/mmaape
*
* @example
* var incrmmaape = require( '@stdlib/stats/incr/mmaape' );
*
* var accumulator = incrmmaape( 3 );
*
* var m = accumulator();
* // returns null
*
* m = accumulator( 2.0, 3.0 );
* // returns ~0.32
*
* m = accumulator( 5.0, 2.0 );
* // returns ~0.65
*
* m = accumulator( 3.0, 2.0 );
* // returns ~0.59
*
* m = accumulator( 2.0, 5.0 );
* // returns ~0.66
*
* m = accumulator();
* // returns ~0.66
*/
// MODULES //
var incrmmaape = require( './main.js' );
// EXPORTS //
module.exports = incrmmaape;