R-devel (2.1.0-to-be) has the comment
# use fast version of file.append that ensure LF between files
so this already has a workaround in that version.
Remember that in R commands are separated by newline or ; so you need complete lines in files. You may be able to adjust your editor to ensure this.
On Wed, 23 Feb 2005, Kiermeier, Andreas (PIRSA - SARDI) wrote:
Dear R-devel members,
I'm in the process of building a package (akmisc) for my own use (Win XP, R 2.0.1 Patched - see details at end).
As I was adding functions (and hence more source .R files) to my package it got to the point were "R CMD check" failed with the following error (output has been cut).
* checking S3 generic/method consistency ... WARNING Error in .try_quietly({ : Error: Unable to load R code in package 'akmisc' Execution halted See section 'Generic functions and methods' of the 'Writing R Extensions' manual.
In an attempt to figure out what went wrong I ran "R CMD INSTALL --build" and had a look a the file "akmisc" that had been installed in the "akmisc/R" folder in my default library. The contents of the file ended in (the function stuff was only for testing)
"plotSymbols" <- function (fn=1) { ## Originally by Henrik Bengtsson ## modified by Rolf Turner ## Posted on R-Help 3 Feb 05 i <- 0:255 ncol <- 16 opar <- par(cex.axis = 0.7, mar = c(3, 3, 3, 3) + 0.1) plot(i%%ncol, 1 + i%/%ncol, pch=i, font=fn, xlab = "", ylab = "", axes = FALSE) axis(1, at = 0:15) axis(2, at = 1:16, labels = 0:15 * 16, las = 2) axis(3, at = 0:15) axis(4, at = 1:16, labels = 0:15 * 16 + 15, las = 2) par(opar) }"stuff" <- function(p){ return(0) }
As it turns out, the source file plotSymbols.R did not end in an empty line, which caused an error only when there was another file after it (such as stuff.R - the last file I had just added). I consequently went back to "Writing R Extensions" (esp 1.1.4 Package subdirectories), but could not find any comment suggesting that files had to end with an empty line (or more).
If I missed such a comment then I don't expect a response. But if I haven't then it may be useful if a comment is included in the documentation to maybe help others.
Regards,
Andreas
OS: Windows XP Precompiled R binary (from CRAN)
version_ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status Patched major 2 minor 0.1 year 2004 month 11 day 21 language R
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