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208+ < span class ="cline-any cline-neutral "> </ span > </ td > < td class ="text "> < pre class ="prettyprint lang-js "> /**
209+ * @license Apache-2.0
210+ *
211+ * Copyright (c) 2025 The Stdlib Authors.
212+ *
213+ * Licensed under the Apache License, Version 2.0 (the "License");
214+ * you may not use this file except in compliance with the License.
215+ * You may obtain a copy of the License at
216+ *
217+ * http://www.apache.org/licenses/LICENSE-2.0
218+ *
219+ * Unless required by applicable law or agreed to in writing, software
220+ * distributed under the License is distributed on an "AS IS" BASIS,
221+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
222+ * See the License for the specific language governing permissions and
223+ * limitations under the License.
224+ */
225+
226+ 'use strict';
227+
228+ // MODULES //
229+
230+ var addon = require( './../src/addon.node' );
231+
232+
233+ // MAIN //
234+
235+ /**
236+ * Returns the excess kurtosis of a negative binomial distribution.
237+ *
238+ * @private
239+ * @param {PositiveNumber} r - number of failures until experiment is stopped
240+ * @param {Probability} p - success probability
241+ * @returns {NonNegativeNumber} excess kurtosis
242+ *
243+ * @example
244+ * var v = kurtosis( 100, 0.2 );
245+ * // returns ~0.061
246+ *
247+ * @example
248+ * var v = kurtosis( 20, 0.5 );
249+ * // returns ~0.325
250+ *
251+ * @example
252+ * var v = kurtosis( 10.3, 0.8 );
253+ * // returns ~0.893
254+ *
255+ * @example
256+ * var v = kurtosis( -2, 0.5 );
257+ * // returns NaN
258+ *
259+ * @example
260+ * var v = kurtosis( 20, 1.1 );
261+ * // returns NaN
262+ *
263+ * @example
264+ * var v = kurtosis( 20, NaN );
265+ * // returns NaN
266+ *
267+ * @example
268+ * var v = kurtosis( NaN, 0.5 );
269+ * // returns NaN
270+ */
271+ function kurtosis( r, p ) {
272+ return addon( r, p );
273+ }
274+
275+
276+ // EXPORTS //
277+
278+ module.exports = kurtosis;
279+ </ pre > </ td > </ tr > </ table > </ pre >
280+
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284+ Code coverage generated by
285+ < a href ="https://istanbul.js.org/ " target ="_blank " rel ="noopener noreferrer "> istanbul</ a >
286+ at 2025-05-10T00:35:32.080Z
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