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@stdlib/math-base-special-logit

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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 /** * Evaluates the logit function. * * ## Notes * * - Let `p` be the probability of some event. The logit function is defined as the logarithm of the odds `p / (1-p)`. * - If `p < 0` or `p > 1`, the function returns `NaN`. * * @param p - input value * @returns function value * * @example * var y = logit( 0.2 ); * // returns ~-1.386 * * @example * var y = logit( 0.9 ); * // returns ~2.197 * * @example * var y = logit( -4.0 ); * // returns NaN * * @example * var y = logit( 1.5 ); * // returns NaN * * @example * var y = logit( NaN ); * // returns NaN */ declare function logit( p: number ): number; // EXPORTS // export = logit;