On 06/05/2007 4:34 AM, Hugo M.Fernandez Bellon wrote:
> Hi
>
> The answer to this may be obvious, but it's got me floored.
>
> I'm unable to get boxplot.stats to work for me!
>
> My session looks something like this:
>
> > ia=read.table('/tmp/prueba.csv', header=TRUE, sep=",")
> > attach(ia)
>
> > boxplot.stats(X8weeks~Orden)
>
> Error in sort (na.last, decreasing, ...) :
> argument 1 is not a vector
See ?boxplot.stats. It can't handle a formula argument, it wants a
numeric vector.
>
> In addition: Warning messages:
> 1: is.na() applied to non-(list or vector) in: is.na(x)
> 2: is.na() applied to non-(list or vector) in: is.na(x)
> 3: is.na() applied to non-(list or vector) in: FUN(X[[1]], ...)
>
> [the error message in R 2.3.1 is slightly different: it says it is not
> atomic and shows only the 1st two warning messages]
>
> However, boxplot(X8weeks~Orden) prints the boxplot properly (no error
> messages, data accurately represented).
You can use boxplot(X8weeks ~ Orden, plot=FALSE).
Duncan Murdoch
>
>> is.numeric(X8weeks)=TRUE
>> is.factor(Orden)=TRUE
> "X8weeks" has no NA's
>
>
> So, the question is: how can I access the data used to generate the boxplot
> (and why does boxplot.stats fail)?
>
>
> Thanks!
>
> Hugo Fernández
>
> -------------
> > sessionInfo()
> R version 2.4.1 (2006-12-18)
> i486-pc-linux-gnu
>
> locale:
> [EMAIL PROTECTED];LC_NUMERIC=C;[EMAIL PROTECTED];
> [EMAIL PROTECTED];[EMAIL PROTECTED];
> [EMAIL PROTECTED];[EMAIL PROTECTED];
> LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;
> [EMAIL PROTECTED];LC_IDENTIFICATION=C
>
> attached base packages:
> [1] "stats" "graphics" "grDevices" "utils" "datasets"
> "methods"
> [7] "base"
>
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