Errors checking a library

Hi

I am writing an R library.  The documentation for one of my functions
includes an example that I *know* works - simply cut and paste into R on
either Windows and Linux and it works perfectly, no errors or warnings,
nothing, nyet.

However, when I run "R CMD check" on the library, I get an error.  I am
running R CMD check on linux, and the offending piece of code appears to
be:

cox[cox$group %in% onc,]

"cox" is a data frame, one of the columns of which is group, which
contains numbers.  "onc" is a vector of numbers.

The output on Linux from R CMD check is this:

# lots of code
# lots of code
cox[cox$group
+
+
+ # the rest of my code
Error: syntax error
Execution halted

As can be seen, my code "cox[cox$group %in% onc,]" seems to have been
executed incorrectly.  Does R CMD check have a problem with the "%in%"
operator?  It would seem that R has somehow got mixed up and has lost
the rest of my command.
I'm guessing at what you may mean, so excuse me getting it wrong. If the 
code is in an example in a help file (*.Rd, \examples{} block), then the % 
may be being interpreted as a comment character, and the remainder of the 
line not processed - see Writing R Extensions -> Writing R documentation 
files -> Insertions.

If that is the problem, then escaping the % by \% should fix it, that it 
what is done in src/library/base/man/match.Rd anyway.
I'm using R 1.9.1 on Suse Linux 8.2.  The example code works fine on
both Windows and Linux when cut-and-pasted into an R window.

Mick

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