Maybe/vendor/javascript/d3-random.js

// d3-random@3.0.1 downloaded from https://ga.jspm.io/npm:d3-random@3.0.1/src/index.js

var r=Math.random;var n=function sourceRandomUniform(r){function randomUniform(n,o){n=null==n?0:+n;o=null==o?1:+o;1===arguments.length?(o=n,n=0):o-=n;return function(){return r()*o+n}}randomUniform.source=sourceRandomUniform;return randomUniform}(r);var o=function sourceRandomInt(r){function randomInt(n,o){arguments.length<2&&(o=n,n=0);n=Math.floor(n);o=Math.floor(o)-n;return function(){return Math.floor(r()*o+n)}}randomInt.source=sourceRandomInt;return randomInt}(r);var a=function sourceRandomNormal(r){function randomNormal(n,o){var a,u;n=null==n?0:+n;o=null==o?1:+o;return function(){var t;if(null!=a)t=a,a=null;else do{a=2*r()-1;t=2*r()-1;u=a*a+t*t}while(!u||u>1);return n+o*t*Math.sqrt(-2*Math.log(u)/u)}}randomNormal.source=sourceRandomNormal;return randomNormal}(r);var u=function sourceRandomLogNormal(r){var n=a.source(r);function randomLogNormal(){var r=n.apply(this,arguments);return function(){return Math.exp(r())}}randomLogNormal.source=sourceRandomLogNormal;return randomLogNormal}(r);var t=function sourceRandomIrwinHall(r){function randomIrwinHall(n){return(n=+n)<=0?()=>0:function(){for(var o=0,a=n;a>1;--a)o+=r();return o+a*r()}}randomIrwinHall.source=sourceRandomIrwinHall;return randomIrwinHall}(r);var e=function sourceRandomBates(r){var n=t.source(r);function randomBates(o){if(0===(o=+o))return r;var a=n(o);return function(){return a()/o}}randomBates.source=sourceRandomBates;return randomBates}(r);var i=function sourceRandomExponential(r){function randomExponential(n){return function(){return-Math.log1p(-r())/n}}randomExponential.source=sourceRandomExponential;return randomExponential}(r);var m=function sourceRandomPareto(r){function randomPareto(n){if((n=+n)<0)throw new RangeError("invalid alpha");n=1/-n;return function(){return Math.pow(1-r(),n)}}randomPareto.source=sourceRandomPareto;return randomPareto}(r);var c=function sourceRandomBernoulli(r){function randomBernoulli(n){if((n=+n)<0||n>1)throw new RangeError("invalid p");return function(){return Math.floor(r()+n)}}randomBernoulli.source=sourceRandomBernoulli;return randomBernoulli}(r);var l=function sourceRandomGeometric(r){function randomGeometric(n){if((n=+n)<0||n>1)throw new RangeError("invalid p");if(0===n)return()=>Infinity;if(1===n)return()=>1;n=Math.log1p(-n);return function(){return 1+Math.floor(Math.log1p(-r())/n)}}randomGeometric.source=sourceRandomGeometric;return randomGeometric}(r);var d=function sourceRandomGamma(r){var n=a.source(r)();function randomGamma(o,a){if((o=+o)<0)throw new RangeError("invalid k");if(0===o)return()=>0;a=null==a?1:+a;if(1===o)return()=>-Math.log1p(-r())*a;var u=(o<1?o+1:o)-1/3,t=1/(3*Math.sqrt(u)),e=o<1?()=>Math.pow(r(),1/o):()=>1;return function(){do{do{var o=n(),i=1+t*o}while(i<=0);i*=i*i;var m=1-r()}while(m>=1-.0331*o*o*o*o&&Math.log(m)>=.5*o*o+u*(1-i+Math.log(i)));return u*i*e()*a}}randomGamma.source=sourceRandomGamma;return randomGamma}(r);var s=function sourceRandomBeta(r){var n=d.source(r);function randomBeta(r,o){var a=n(r),u=n(o);return function(){var r=a();return 0===r?0:r/(r+u())}}randomBeta.source=sourceRandomBeta;return randomBeta}(r);var f=function sourceRandomBinomial(r){var n=l.source(r),o=s.source(r);function randomBinomial(r,a){r=+r;return(a=+a)>=1?()=>r:a<=0?()=>0:function(){var u=0,t=r,e=a;while(t*e>16&&t*(1-e)>16){var i=Math.floor((t+1)*e),m=o(i,t-i+1)();if(m<=e){u+=i;t-=i;e=(e-m)/(1-m)}else{t=i-1;e/=m}}var c=e<.5,l=c?e:1-e,d=n(l);for(var s=d(),f=0;s<=t;++f)s+=d();return u+(c?f:t-f)}}randomBinomial.source=sourceRandomBinomial;return randomBinomial}(r);var h=function sourceRandomWeibull(r){function randomWeibull(n,o,a){var u;if(0===(n=+n))u=r=>-Math.log(r);else{n=1/n;u=r=>Math.pow(r,n)}o=null==o?0:+o;a=null==a?1:+a;return function(){return o+a*u(-Math.log1p(-r()))}}randomWeibull.source=sourceRandomWeibull;return randomWeibull}(r);var v=function sourceRandomCauchy(r){function randomCauchy(n,o){n=null==n?0:+n;o=null==o?1:+o;return function(){return n+o*Math.tan(Math.PI*r())}}randomCauchy.source=sourceRandomCauchy;return randomCauchy}(r);var R=function sourceRandomLogistic(r){function randomLogistic(n,o){n=null==n?0:+n;o=null==o?1:+o;return function(){var a=r();return n+o*Math.log(a/(1-a))}}randomLogistic.source=sourceRandomLogistic;return randomLogistic}(r);var g=function sourceRandomPoisson(r){var n=d.source(r),o=f.source(r);function randomPoisson(a){return function(){var u=0,t=a;while(t>16){var e=Math.floor(.875*t),i=n(e)();if(i>t)return u+o(e-1,t/i)();u+=e;t-=i}for(var m=-Math.log1p(-r()),c=0;m<=t;++c)m-=Math.log1p(-r());return u+c}}randomPoisson.source=sourceRandomPoisson;return randomPoisson}(r);const M=1664525;const B=1013904223;const p=1/4294967296;function lcg(r=Math.random()){let n=0|(0<=r&&r<1?r/p:Math.abs(r));return()=>(n=M*n+B|0,p*(n>>>0))}export{e as randomBates,c as randomBernoulli,s as randomBeta,f as randomBinomial,v as randomCauchy,i as randomExponential,d as randomGamma,l as randomGeometric,o as randomInt,t as randomIrwinHall,lcg as randomLcg,u as randomLogNormal,R as randomLogistic,a as randomNormal,m as randomPareto,g as randomPoisson,n as randomUniform,h as randomWeibull};