@stdlib/esm/stats/base/dists/poisson/pmf.js

ES module distribution for Stdlib, a standard library for JavaScript and Node.js.

// This file is a part of stdlib. License is Apache-2.0: http://www.apache.org/licenses/LICENSE-2.0
import r from"./../../../../utils/define-nonenumerable-read-only-property.js";import t from"./../../../../math/base/assert/is-nonnegative-integer.js";import a from"./../../../../math/base/special/factorialln.js";import e from"./../../../../math/base/assert/is-nan.js";import o from"./../../../../math/base/special/exp.js";import n from"./../../../../math/base/special/ln.js";import s from"./../../../../constants/math/float64-pinf.js";import i from"./../../../../utils/constant-function.js";import m from"./../degenerate/pmf.js";var f=t,p=a,u=e,c=o,l=n,j=s;function b(r,t){var a;return u(r)||u(t)||t<0?NaN:0===t?0===r?1:0:f(r)&&r!==j?(a=r*l(t)-t-p(r),c(a)):0}var h=t,v=i,N=a,d=m.factory,y=e,g=o,x=n,k=s;function q(r){return y(r)||r<0?v(NaN):0===r?d(0):function(t){var a;if(y(t))return NaN;if(h(t)&&t!==k)return a=t*x(r)-r-N(t),g(a);return 0}}var w=r,z=b,A=q;w(z,"factory",A);export default z;
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