Full_Name: Leo van Romunde
Version: 2, 1, 0
OS: Win XP prof. sp1
Submission from: (NULL) (81.58.34.90)


When we type the following R gives an error:

> a = c(1, 2)
> b = c(1, 2)
> boxplot (a ~ b)
Error in list(a, b) : invalid 'envir' argument

When we do exactly the same on another machine (Win2000) it works correctly.
Any suggestions?

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