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@stdlib/stats-base-dists-triangular-mean

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Triangular distribution expected value.

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/* * @license Apache-2.0 * * Copyright (c) 2019 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. */ // TypeScript Version: 4.1 /** * Returns the expected value of a triangular distribution. * * ## Notes * * - If the condition `a <= c <= b` is not satisfied, the function returns `NaN`. * * @param a - minimum support * @param b - maximum support * @param c - mode * @returns expected value * * @example * var v = mean( 0.0, 1.0, 0.5 ); * // returns ~0.5 * * @example * var v = mean( 4.0, 12.0, 9.0 ); * // returns ~8.333 * * @example * var v = mean( -4.0, 4.0, -1.0 ); * // returns ~-0.333 * * @example * var v = mean( 1.0, -0.1, 0.5 ); * // returns NaN * * @example * var v = mean( 0.0, 1.0, 2.0 ); * // returns NaN * * @example * var v = mean( NaN, 4.0, 2.0 ); * // returns NaN * * @example * var v = mean( 0.0, NaN, 2.0 ); * // returns NaN * * @example * var v = mean( 0.0, 4.0, NaN ); * // returns NaN */ declare function mean( a: number, b: number, c: number ): number; // EXPORTS // export = mean;