[R] Error when producing multiple graphes

[Uli Kleinwechter]

Sorry. My last message maybe was not very helpful. Please find here a 
more concise form of the code. It produces a dataframe of more or less 
the characteristics of the one that I use and yields the same error message:
*****
x1<-c(1,2,3,4,NA ,NA ,NA, 3, 1, 1, 1, 1, 2, 2, 3, 4, 4)

x2<-c(2,3,4,3,4,3,4,2,2,3,4,NA,NA,NA,NA,4,3)

x3<-c(NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA)

x4<-c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,1,2)

type3m<-data.frame(x1,x2,x3,x4)

barnamesm<-c("1=One","2=Two", "3=Three", "4=Four")

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))
****

Thanks again!

Uli

bartjoosen schrieb:
> 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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>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
>>     
>
>