[metapost] drawing a beta-distribution?

[Andreas Matthias]

Martin Kaffanke wrote:

> Hi there, I have troubles, I've never used octave before, so I installed
> 2.9 on my ubuntu.

> error: can't redefine read-only function `prob'
> error: near line 10 of file
> `/home/martin/work/Uni/Diplomarbeit/Dokument/beta.m'

The script uses the beta function which is defined in a file called
beta.m provided within the octave distribution. It seems that you are
having another beta.m in your working directory which overrules
octave's beta.m.

Ciao
Andreas