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