[R] (d,p,r,q) for all distributions, but no m?

[Bert Gunter]

No you may not.

I suggest that you *first search before posting* -- e.g. on "R package
moments of distributions" -- where you would find the package
"moments" that apparently already does exactly what you suggest (there
are some other packages as well). You could also first search the CRAN
task views site to find this:

https://cran.r-project.org/web/views/Distributions.html

R is a mature software environment with something like 8000 packages.
It is highly unlikely that you (or I !) would think of some simple
statistical functionality that is not already available.



Cheers,
Bert
Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Mon, Sep 12, 2016 at 7:32 AM, ALBERTO VIEIRA FERREIRA MONTEIRO
<albmont at centroin.com.br> wrote:
> Today I need to compute the means for some distributions... and there's no easy way to do it!
>
> I mean (no pun intended), there is (d,p,r,q) for all distributions (like: dgamma, pgamma, rgamma, qgamma; dchisq, pchisq, rchisq, dchisp; etc), but there is no "m"-functions, like a mgamma to get the mean (or any momentum) of gamma, a mchisq, a mnorm, etc.
>
> May I suggest adding these functions?
>
> Alberto Monteiro
>
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