@stdlib/stats-base-dists-triangular-mean/lib/native.js

Triangular distribution expected value.

/**
* @license Apache-2.0
*
* Copyright (c) 2024 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';

// MODULES //

var addon = require( './../src/addon.node' );


// MAIN //

/**
* Returns the expected value (mean) of a triangular distribution.
*
* @private
* @param {NonNegativeNumber} a - minimum support
* @param {NonNegativeNumber} b - maximum support
* @param {NonNegativeNumber} c - mode
* @returns {NonNegativeNumber} expected value (mean)
*
* @example
* var v = mean( 0.0, 10.0, 5.0 );
* // returns 5.0
*
* @example
* var v = mean( 2.0, 8.0, 4.0 );
* // returns ~4.667
*
* @example
* var v = mean( -1.0, 5.0, 6.0 );
* // returns NaN
*
* @example
* var v = mean( NaN, 10.0, 5.0 );
* // returns NaN
*/
function mean( a, b, c ) {
	return addon( a, b, c );
}


// EXPORTS //

module.exports = mean;