On 13/07/2012 9:46 AM, Abhi Raghavan wrote:
Hi,
I'm trying to run an R script from the command line and I do it in the
following way:
R CMD BATCH -q <something.R> <output file>*
*I write the R script from inside a Perl program (on UNIX of course!)
and execute the shell command using the function "system".**What
intrigues me is the strange error that I see in the output file:
Error: embedded nul in string: '\0'
Execution halted
I would guess a likely cause of this is that there really are nuls in
your something.R file. Do you have a binary editor that can look at it?
There are lots of other possibilities too, e.g. something is writing out
of bounds and putting nuls into strings in memory. Those are likely
harder to track down, so I'd look in the file first.
Duncan Murdoch
When I copy and paste the commands manually in the R command prompt, I
get exactly what I expect to get. I've never come across this error
before. I did some brief searches on the net but cannot find any
comprehensive on how this problem can be fixed. I would appreciate some
help in the matter.
As a general question, are there any mature Perl modules that help one
interface R with Perl without having to resort to more cumbersome
methods such as using system calls from within?
Many thanks.
Abhi
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