[R] tapply, levelinformation

[Antje]

Hi Jim,

jim holtman schrieb:
> Here is one way:
>  
> t <- split(mat, classes)
> for (i in names(t)) plotdensity(t[[i]], main=i)
> 

But then I don't use the advantages of the tapply anymore...

> What is the problem you are trying to solve?

I have a set of data (multiple files), which belong to different
conditions (one or more files per condition). I wanted to read the data
set and a "description" of the conditions and then automatically create
plots for data of the same condition.

Maybe it's much to complicate the way I do...

Antje