igamma: Inverse of the digamma function
In distr: Object Oriented Implementation of Distributions
igamma R Documentation
Inverse of the digamma function
Description
Function igamma is a numerical inverse of digamma.
Usage
igamma(v)
Arguments
v
a numeric in the range [-100000,18]
Details
igamma is vectorized; it is won
by spline inversion of a grid; it works well for range
[digamma(1e-5);digamma(1e8)] or [-100000,18].
Value
igamma(x) is a value u such that digamma(u is approximately x.
Author(s)
Peter Ruckdeschel peter.ruckdeschel@uni-oldenburg.de
See Also
digamma
Examples
igamma(digamma(c(1e-4,1,20,1e8)))
distr documentation built on May 31, 2023, 5:58 p.m.
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| igamma | R Documentation |
Inverse of the digamma function
Description
Function igamma is a numerical inverse of digamma.
Usage
igamma(v)
Arguments
v |
a numeric in the range [-100000,18] |
Details
igamma is vectorized; it is won
by spline inversion of a grid; it works well for range
[digamma(1e-5);digamma(1e8)] or [-100000,18].
Value
igamma(x) is a value u such that digamma(u is approximately x.
Author(s)
Peter Ruckdeschel peter.ruckdeschel@uni-oldenburg.de
See Also
digamma
Examples
igamma(digamma(c(1e-4,1,20,1e8)))
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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