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@stdlib/stats-base-dists-f-kurtosis

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F distribution excess kurtosis.

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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 excess kurtosis of an F distribution. * * ## Notes * * - If `d1 <= 0` or `d2 <= 0`, the function returns `NaN`. * * @param d1 - numerator degrees of freedom * @param d2 - denominator degrees of freedom * @returns kurtosis * * @example * var v = kurtosis( 3.0, 9.0 ); * // returns ~124.667 * * @example * var v = kurtosis( 4.0, 12.0 ); * // returns ~26.143 * * @example * var v = kurtosis( 8.0, 9.0 ); * // returns ~100.167 * * @example * var v = kurtosis( 1.0, 8.0 ); * // returns NaN * * @example * var v = kurtosis( 1.0, -0.1 ); * // returns NaN * * @example * var v = kurtosis( -0.1, 1.0 ); * // returns NaN * * @example * var v = kurtosis( 2.0, NaN ); * // returns NaN * * @example * var v = kurtosis( NaN, 2.0 ); * // returns NaN */ declare function kurtosis( d1: number, d2: number ): number; // EXPORTS // export = kurtosis;