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202+ < span class ="cline-any cline-neutral "> </ span > </ td > < td class ="text "> < pre class ="prettyprint lang-js "> /**
203+ * @license Apache-2.0
204+ *
205+ * Copyright (c) 2025 The Stdlib Authors.
206+ *
207+ * Licensed under the Apache License, Version 2.0 (the "License");
208+ * you may not use this file except in compliance with the License.
209+ * You may obtain a copy of the License at
210+ *
211+ * http://www.apache.org/licenses/LICENSE-2.0
212+ *
213+ * Unless required by applicable law or agreed to in writing, software
214+ * distributed under the License is distributed on an "AS IS" BASIS,
215+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
216+ * See the License for the specific language governing permissions and
217+ * limitations under the License.
218+ */
219+
220+ 'use strict';
221+
222+ // MODULES //
223+
224+ var addon = require( './../src/addon.node' );
225+
226+
227+ // MAIN //
228+
229+ /**
230+ * Evaluates the probability mass function (PMF) for a binomial distribution with number of trials `n` and success probability `p` at a value `x`.
231+ *
232+ * @private
233+ * @param {number} x - input value
234+ * @param {NonNegativeInteger} n - number of trials
235+ * @param {Probability} p - success probability
236+ * @returns {Probability} evaluated PMF
237+ *
238+ * @example
239+ * var y = pmf( 3.0, 20, 0.2 );
240+ * // returns ~0.205
241+ *
242+ * @example
243+ * var y = pmf( 21.0, 20, 0.2 );
244+ * // returns 0.0
245+ *
246+ * @example
247+ * var y = pmf( 5.0, 10, 0.4 );
248+ * // returns ~0.201
249+ *
250+ * @example
251+ * var y = pmf( 0.0, 10, 0.4 );
252+ * // returns ~0.006
253+ *
254+ * @example
255+ * var y = pmf( NaN, 20, 0.5 );
256+ * // returns NaN
257+ *
258+ * @example
259+ * var y = pmf( 0.0, 20, NaN );
260+ * // returns NaN
261+ */
262+ function pmf( x, n, p ) {
263+ return addon( x, n, p );
264+ }
265+
266+
267+ // EXPORTS //
268+
269+ module.exports = pmf;
270+ </ pre > </ td > </ tr > </ table > </ pre >
271+
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275+ Code coverage generated by
276+ < a href ="https://istanbul.js.org/ " target ="_blank " rel ="noopener noreferrer "> istanbul</ a >
277+ at 2025-07-25T03:10:52.135Z
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