Changes in version 1.2 (2025-07-02)                   

New features

  - invgamma has an updated README containing a simulation check on
    rinvgamma().

Changes

  - rinvgamma() now warns for shape less than 0.01, as it is unreliable
    there.
  - rinvchisq() now warns for df <= .01 and ncp <= 10, as it is
    unreliable there.
  - PDF functions now return 0 at x = 0 and -Inf at x = 0 on a log
    scale, consistent with the gamma distribution functions.
  - invgamma now cautions users about the parameterizations used in
    (d/p/q/r)invgamma() functions.
  - invgamma now has a MIT license.
  - Quantile functions now perform properly on a log scale, thanks to
    Keefe Murphy!

                  Changes in version 1.1 (2017-05-07)                   

New features

  - (d/p/q/r)invgamma() now defaults the rate parameter to 1, like
    (d/p/q/r)gamma().

Fixes

  - README images moved from figures/ to tools/

                  Changes in version 1.0 (2016-07-02)                   

New features

  - (d/p/q/r)invchisq() and (d/p/q/r)invexp() are now included, tied to
    their base R counterparts.

New features

  - dinvgamma() is now tied to dgamma() in base, instead of being a
    custom implementation of the density.