Hallo all,
I got a problem executing R in batch-mode via a perl-script (under Win2000) :
system ("Rterm.exe --slave --no-save --no-restore \<Rfile.r
\>NUL");
The R execution is aborting with syntax error due to very-long lines.
My solution is converting
a <- c("very long string")
to
a <- paste("short string 1",\n
"short string 2",\n
...,\n
"short string n")
It is not very elegant ...
Does anybody know a better solution ?
Thank you in advance,
Alessandro Valli
Have you considered enclosing the "very long string" in parentheses?
Then R will know that it is not syntactically correct until it reaches
the end. To avoid that kind of thing, I routinely include "(" just to
the right of "<-" in virtually any statement that might otherwise
get
split onto two lines in a way that the first might be evaluated without
the second.
hope this helps. spencer graves
p.s. I got this from Venables and Ripley, but I can't remember which
book or which page.
alessandro.valli at AMD.com wrote:
>Hallo all,
>
>I got a problem executing R in batch-mode via a perl-script (under Win2000)
:
> system ("Rterm.exe --slave --no-save --no-restore \<Rfile.r
\>NUL");
>The R execution is aborting with syntax error due to very-long lines.
>My solution is converting
>a <- c("very long string")
>to
>a <- paste("short string 1",\n
> "short string 2",\n
> ...,\n
> "short string n")
>It is not very elegant ...
>Does anybody know a better solution ?
>
>Thank you in advance,
>Alessandro Valli
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
>
Thank you Spencer,
but it seems not to work with strings :
myquery <- c("select ..... very long string => gives syntax error
myquery <- {c("select ..... very long string => gives syntax error
It seems that the closing " is required in any case.
Thank you in any case,
Alessandro Valli
-----Original Message-----
From: Spencer Graves [mailto:spencer.graves at pdf.com]
Sent: Mittwoch, 17. September 2003 18:46
To: Valli, Alessandro
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] Very long console input lines
Have you considered enclosing the "very long string" in parentheses?
Then R will know that it is not syntactically correct until it reaches
the end. To avoid that kind of thing, I routinely include "(" just to
the right of "<-" in virtually any statement that might otherwise
get
split onto two lines in a way that the first might be evaluated without
the second.
hope this helps. spencer graves
p.s. I got this from Venables and Ripley, but I can't remember which
book or which page.
alessandro.valli at AMD.com wrote:
>Hallo all,
>
>I got a problem executing R in batch-mode via a perl-script (under Win2000)
:
> system ("Rterm.exe --slave --no-save --no-restore \<Rfile.r
\>NUL");
>The R execution is aborting with syntax error due to very-long lines.
>My solution is converting
>a <- c("very long string")
>to
>a <- paste("short string 1",\n
> "short string 2",\n
> ...,\n
> "short string n")
>It is not very elegant ...
>Does anybody know a better solution ?
>
>Thank you in advance,
>Alessandro Valli
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
>