[R] paste? 'cmd /c "c:\\pheno\\whap --file c:\\pheno\\smri --alt 1"'

[Gabor Grothendieck]

Use single outer quotes so that the inner double quotes are not
interpreted as the end of the string.

cmd <- 'cmd /c "...whatever..." '
system(cmd, intern = TRUE)

On 9/25/06, Boks, M.P.M. <M.P.M.Boks at umcutrecht.nl> wrote:
> Dear R users,
>
> This command works (calling a programm -called whap- with file specifiers etc.):
>
> >system('cmd /c "c:\\pheno\\whap --file c:\\pheno\\smri --alt 1 --perm 500"', intern=TRUE)
>
> Now I need to call it from a loop to replace the "1" by different number, however I get lost using the quotes:
>
> I tried numerous versions of:
>
> >i<-1
> >system(paste(c("'cmd /c "c:\\pheno\\whap --file c:\\pheno\\smri --alt", i, " --perm 500"'", sep="" )), intern=TRUE)
>
> However no luck! I would be gratefull for any help.
>
> Thanks,
>
> Marco
>
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