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% File src/library/stats/man/GammaDist.Rd
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% File src/library/stats/man/GammaDist.Rd
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% Part of the R package, http://www.R-project.org
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% Part of the R package, http://www.R-project.org
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% Copyright 1995-2013 R Core Team
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% Copyright 1995-2013 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\newcommand{\CRANpkg}{\href{http://CRAN.R-project.org/package=#1}{\pkg{#1}}}
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\name{GammaDist}
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\name{GammaDist}
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\alias{GammaDist}
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\alias{GammaDist}
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\alias{dgamma}
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\alias{dgamma}
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\alias{pgamma}
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\alias{pgamma}
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\alias{qgamma}
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\alias{qgamma}
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  \code{pgamma(x, a, lower = FALSE) * gamma(a)}.
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  \code{pgamma(x, a, lower = FALSE) * gamma(a)}.
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  Note however that \code{pgamma(x, a, ..)} currently requires \eqn{a > 0},
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  Note however that \code{pgamma(x, a, ..)} currently requires \eqn{a > 0},
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  whereas the incomplete gamma function is also defined for negative
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  whereas the incomplete gamma function is also defined for negative
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  \eqn{a}.  In that case, you can use \code{gamma_inc(a,x)} (for
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  \eqn{a}.  In that case, you can use \code{gamma_inc(a,x)} (for
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  \eqn{\Gamma(a,x)}) from package \pkg{gsl}.
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  \eqn{\Gamma(a,x)}) from package \CRANpkg{gsl}.
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  See also
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  See also
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  \url{http://en.wikipedia.org/wiki/Incomplete_gamma_function}, or
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  \url{http://en.wikipedia.org/wiki/Incomplete_gamma_function}, or
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  \url{http://dlmf.nist.gov/8.2#i}.
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  \url{http://dlmf.nist.gov/8.2#i}.
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}
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}