Dear R community members,
I am very new to R, so I hope I didn´t oversee the answer to my question
in the manuals and faqs.
I am trying to create a histogram containing several data sets (I would
like to see how the dependent variable is distributed for the different
groups). This should be possible using the function multhist contained
in the plotrix package. (I am using R 2.2.1, in windows XP).
I have an array with 

> dim(risetime)
[1]  5  8  4  4 79

And I would like to plot subsets of this array with multhist. As far as
I could understand multhist can only use a list of numerical vectors,
and that is why it can not process something like:

multhist(list(risetime[,,,1,],risetime[,,,2,],risetime[,,,3,],
risetime[,,,4,],breaks="FD")

On the other hand, if I try:
multhist(risetime[,,,1,],risetime[,,,2,],
	breaks="FD",xlab="rise time (sec)",ylab="counts",
	xlim=c(0,8))

The following error appears:

Error in axis(side, at, labels, tick, line, pos, outer, font, vfont,
lty,  : 
        no locations are finite

(which is quite strange because if Iuse multhist with a list of
numerical vectors it plots the histograms without need of specifying any
of the above mentioned parameters).

I would appreciate any suggestions.
Thank you very much in advance.

Ana
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Ana Florencia Silbering
Departament of Biology - Universität Konstanz
Universitätsstraße 10 - M11
D-78457 Konstanz
Germany
 
Tel.: (+49 7531) 88 - 4642
Fax: (+49 7531) 88 - 3894
email: anafs@zedat.fu-berlin.de
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