[R] Random Beta variates

[Michael_Scroggie@nre.vic.gov.au]

I have been trying to use the rbeta() function to generate random beta
variates with a particular mean and standard deviaiton  for some simulation
problems
I am working on, however I am unsure of the relationship between the
parameters shape1 and shape2 and the mean and standard deviation of the
beta
distribution. I am guessing that there is a formula for this, but I am
unsure what it is. Can anyone advise me?

Regards,

Michael Scroggie


Dr Michael Scroggie

Scientist - Fauna Ecology

Arthur Rylah Institute for Environmental Research

Department of Natural Resources and Environment

123 Brown St

Heidelberg 3084               Phone +61 3 9450 8745

Victoria                      Fax:        +61 3 9450 8799

AUSTRALIA                     email: michael.scroggie at nre.vic.gov.au


-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._