@stdlib/esm/stats/base/dists/chi/logpdf.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 t from"./../../../../utils/define-nonenumerable-read-only-property.js";import r from"./../../../../math/base/assert/is-nan.js";import a from"./../../../../math/base/special/gammaln.js";import o from"./../../../../math/base/special/ln.js";import n from"./../../../../constants/math/float64-ninf.js";import m from"./../../../../constants/math/float64-pinf.js";import s from"./../../../../constants/math/float64-ln-two.js";import f from"./../../../../utils/constant-function.js";import e from"./../degenerate/logpdf.js";var i=r,p=a,l=o,u=n,c=m,j=s;function h(t,r){var a,o;return i(t)||i(r)||r<0?NaN:0===r?0===t?c:u:t<0||t===c?u:(a=(1-(o=r/2))*j+(r-1)*l(t)-t*t/2,a-=p(o))}var v=f,N=e.factory,d=r,b=a,y=o,g=n,w=m,x=s;function k(t){var r,a;return d(t)||t<0?v(NaN):0===t?N(0):(a=t/2,r=t-1,function(t){var o;if(d(t))return NaN;if(t<0||t===w)return g;return o=(1-a)*x+r*y(t)-t*t/2,o-=b(a)})}var q=t,z=h,A=k;q(z,"factory",A);export default z;
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