Could you provide us some working codo, so that we can reproduce the error
and see what went wrong?
Uli Kleinwechter wrote:
>
> Dear all,
>
> Within a larger script I use the following code to produce barplots for
> all variables contained in a dataframe "type3m":
>
> for(xn in names(type3m)) barplot(table(type3m[[xn]]), main = paste
> ("Barplot of", xn), width=0.75,legend.text=barnamesm,
> xlim=c(0,4),ylim=c(0,400))
>
> The plots are produced and printed into a *.ps file. However, R gives an
> error message and aborts the script. The error message is:
>
> Fehler in rect(as.double(xleft), as.double(ybottom),
> as.double(xright), :
> ungültiges erstes Argument
>
> (it's in German. In English, it says something like "Error in
> rect(as.double(xleft), as.double(ybottom), as.double(xright), : invalid
> first argument)
>
> It seems to be some problem with the barplot function. The variables in
> the dataframe are discrete variables taking values from 1 to 4 (hence,
> the xlim=c(0,4) and the graph is supposed to show the frequency of each
> value. Maybe the problem is related to the fact that not some variables
> don't take all of the values, i.e., there are some that don't take the
> value 1, for example.
>
> I spent quite some time trying to solve the problem, but can't manage
> it. What's wrong here and how can it be solved?
>
> Thank you very much!
>
> Uli
>
>
> [[alternative HTML version deleted]]
>
>
> ______________________________________________
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>
>
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