This solution is fine, too.
The Achim's solution is what I have asked with this slight modification:

$ R -q --no-save < prova > prova.out 2>> prova.out

Again, thanks to Achim and Prof. Ripley.
Best,
Elio

Prof Brian Ripley wrote:

It is probably easier to use BATCH as in

    R CMD BATCH prova output

See ?BATCH.  That does what Elio actually asked for.

On Thu, 7 Apr 2005, Achim Zeileis wrote:

On Thu, 07 Apr 2005 12:45:16 +0200 Elio Mineo wrote:

Dear list,
I am using R in batch mode:

$ R -q --no-save < prova > output

the input file "prova" has these commands:

data(USArrests)
x<-USArrests
hist(x)

of course, the command hist(x) produces an error. The error message
is: Error in hist.default(x) : `x' must be numeric.
Is there the possibility to save this error massage in the "output"
file?


You could do something like
 $ R -q --no-save < prova > prova.out 2> prova.err
Best,
Z


Thanks in advance,
Angelo

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