R help - Feb 2007 - tapply, levelinformation

Hello,

I have another question. I would like to plot something within a self 
written function (plotdensity) called by tapply

t <- tapply(mat, classes, plotdensity)

Now I would like to add each plot the class/level as title.
How can I do this?

Antje

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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