Thanks for the suggestions. Just to wrap up this thread... Rainer Krug pointed out that Roxygen did have dependency graphs, although Roxygen2 doesn't. But I guess (probably wrongly!) that I'd need to process/modify the .R files to use that, and I'm not the package author.
Duncan Murdoch pointed out codetools::findGlobals which can be used to find functions called by a target function. But I want to find functions calling a target function. Mark Bravington pointed out mvbutils::foodweb and callers.of which almost do what I want (I think it was this I half remembered). But this works in the namespace of the package, and my target function isn't exported so foodweb doesn't see it! Working from Duncan's suggestion I came up with this, not pretty or fast, could certainly be improved, but it did my one-off job.: -------------------- # return a character vector of names of functions in 'tarPack' (character) which directly call the function 'tarFunc' (character) called.by <- function(tarFunc, tarPack){ require(codetools) flist <- sapply(lsf.str(tarPack, all=TRUE), c) names(flist) <- NULL gotit <- sapply(flist, function(x) tarFunc %in% findGlobals(get(x, tarPack), FALSE)$functions) flist[gotit] } # e.g. called.by("CreateMeanFizz", "package:sensory") ------------------------------------------ Thanks again for the input. Keith Jewell >> Hi, >> >> I'd like to know which functions in a package call one specific >> function. >> I think I've seen a tool for identifying such dependencies, but now I >> can't find it :-( Searches of help and R site search for keywords >> like function, call, tree, depend haven't helped :-( >> >> Can anyone point me in the right direction? >> >> Thanks in advance, >> >> Keith Jewell >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel