@stdlib/esm/random/base/gumbel.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 e from"./../../utils/define-nonenumerable-read-only-property.js";import n from"./../../utils/define-nonenumerable-read-only-accessor.js";import r from"./../../utils/define-nonenumerable-read-write-accessor.js";import t from"./../../assert/is-plain-object.js";import o from"./../../assert/is-function.js";import i from"./../../assert/has-own-property.js";import s from"./../../utils/constant-function.js";import a from"./../../utils/noop.js";import u from"./mt19937.js";import m from"./../../math/base/assert/is-nan.js";import p from"./../../array/to-json.js";import l from"./../../assert/is-number.js";import f from"./../../assert/is-positive-number.js";import g from"./../../assert/is-nan.js";import c from"./../../math/base/special/ln.js";var d=l.isPrimitive,b=f.isPrimitive,h=g;function j(e,n){return!d(e)||h(e)?new TypeError("invalid argument. `mu` must be a number primitive and not `NaN`. Value: `"+e+"`."):b(n)?null:new TypeError("invalid argument. `beta` must be a positive number. Value: `"+n+"`.")}var v=c;function y(e,n,r){return n-r*v(-v(e()))}var w=e,N=n,L=r,E=t,O=o,T=i,P=s,V=a,G=u.factory,R=m,A=p,J=j,M=y;function S(){var e,n,r,t,o,i;if(0===arguments.length)r=G();else if(1===arguments.length){if(!E(n=arguments[0]))throw new TypeError("invalid argument. Options argument must be an object. Value: `"+n+"`.");if(T(n,"prng")){if(!O(n.prng))throw new TypeError("invalid option. `prng` option must be a pseudorandom number generator function. Option: `"+n.prng+"`.");r=n.prng}else r=G(n)}else{if(o=J(i=arguments[0],e=arguments[1]))throw o;if(arguments.length>2){if(!E(n=arguments[2]))throw new TypeError("invalid argument. Options argument must be an object. Value: `"+n+"`.");if(T(n,"prng")){if(!O(n.prng))throw new TypeError("invalid option. `prng` option must be a pseudorandom number generator function. Option: `"+n.prng+"`.");r=n.prng}else r=G(n)}else r=G()}return w(t=void 0===i?c:g,"NAME","gumbel"),n&&n.prng?(w(t,"seed",null),w(t,"seedLength",null),L(t,"state",P(null),V),w(t,"stateLength",null),w(t,"byteLength",null),w(t,"toJSON",P(null)),w(t,"PRNG",r)):(N(t,"seed",s),N(t,"seedLength",a),L(t,"state",p,l),N(t,"stateLength",u),N(t,"byteLength",m),w(t,"toJSON",f),w(t,"PRNG",r),r=r.normalized),t;function s(){return r.seed}function a(){return r.seedLength}function u(){return r.stateLength}function m(){return r.byteLength}function p(){return r.state}function l(e){r.state=e}function f(){var n={type:"PRNG"};return n.name=t.NAME,n.state=A(r.state),n.params=void 0===i?[]:[i,e],n}function g(){return M(r,i,e)}function c(e,n){return R(e)||R(n)||n<=0?NaN:M(r,e,n)}}var x=S,z=x(),k=e,q=z,B=S;k(q,"factory",B);export default q;
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