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R/igamma.R
In distr: Object Oriented Implementation of Distributions
### defines the inverse function of digamma called igamma for simplicity
## an extensive grid of x-values
.xg <- sort(c(10^(-70:-1),qexp(unique(pmin(seq(0,1,length=5e3)+1e-10,1-1e-10))),qcauchy(seq(0.999,1-1e-10,length=5e3))))
.dxg <- digamma(.xg)
igamma <- approxfun(.dxg,.xg)
rm(.xg,.dxg)
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distr documentation built on May 31, 2023, 5:58 p.m.
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### defines the inverse function of digamma called igamma for simplicity
## an extensive grid of x-values
.xg <- sort(c(10^(-70:-1),qexp(unique(pmin(seq(0,1,length=5e3)+1e-10,1-1e-10))),qcauchy(seq(0.999,1-1e-10,length=5e3))))
.dxg <- digamma(.xg)
igamma <- approxfun(.dxg,.xg)
rm(.xg,.dxg)
Try the distr package in your browser
Any scripts or data that you put into this service are public.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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