Hi Michael,
On 03/23/2011 03:03 PM, Michael Friendly wrote:
[Env: R 2.12.2, WinXp]
In a vignette for the vcdExtra package, I had a text file, tv.dat under
data/, that I used in the vignette as
<<tv1,results=verbatim>>=
tv.data<-read.table(system.file("data","tv.dat",package="vcdExtra"))
head(tv.data,5)
@
I was told that this now generates a warning for non-Rdata files in R
CMD check. But I'm now confused about
where to put this and how to use system.file() in the vignette to read
it. The R-exts.pdf says
The R working directory for all vignette tests in R CMD
check is the installed version of the ‘doc’ subdirectory. Make sure all
files needed by the vignette
(data sets, . . . ) are accessible by either placing them in the
‘inst/doc’ hierarchy of the source
package, or using calls to system.file().
So, I moved this file to inst/doc/extdata/tv.dat, and changed the
vignette to
<<tv1,results=verbatim>>=
tv.data<-read.table(system.file("inst","doc","extdata","tv.dat",package="vcdExtra"))
head(tv.data,5)
@
But I get the error:
Error: processing vignette 'vcd-tutorial.Rnw' failed with diagnostics:
chunk 23 (label=tv1)
Error in read.table(system.file("inst", "doc", "extdata", "tv.dat",
package = "vcdExtra")) :
no lines available in input
How can I fix this?
The inst/ will be removed once the package is installed, so you
would need
system.file("doc", "extdata", "tv.dat", package = "vcdExtra")
The warning on non Rdata files is probably due to the fact that
.dat is not supported, see Section 1.1.5 of Writing R Extensions
and ?data
Best,
Tobias
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
