I think it would be a good idea. Several versions of the survival package had a
duplicate
line in the S3methods, and were missing a line that should have been there, due
to a
cut/paste error.
Terry T.
On 03/13/2013 06:00 AM, r-devel-request at r-project.org
wrote:> Circa 80 CRAN and core-R packages have duplicate export entries in their
NAMESPACE files. E.g.,
> bit 1.1.9 : c("as.bit", "as.bitwhich",
"as.which", "physical", "virtual")
> forecast 4.1 : "forecast.lm"
> graphics 2.15.3 : "barplot"
> mcmc 0.9.1 : "morph"
> RCurl 1.95.3 : "curlOptions"
> utils 2.15.3 : "RweaveLatexOptions"
> Would it be helpful for 'check' to alert package writers to this?
>
> I made the list using f():
> f<- function ()
> {
> for(pkg in installed.packages()[,"Package"]) {
> try( {
> exports<- parseNamespaceFile(pkg,
R.home("library"))$exports
> if (any(dup<- duplicated(exports))) {
> cat(pkg, format(packageVersion(pkg)), ":",
deparse(exports[dup]), "\n")
> }
> }, silent = TRUE)
> }
> }
> I suppose it should also check for duplicates in S3method component, etc.
>
> Bill Dunlap
> Spotfire, TIBCO Software
> wdunlap tibco.com
>
