a weird question about gdata:::
??namespace ?getAnywhere ?"::" See also: http://www.stat.uiowa.edu/~luke/R/namespaces/morenames.pdf Bottom line: namespaces provide a mechanism to "hide" certain variables within a package. Special measures as documented above are required to view them -- Bert
On Sun, Dec 4, 2011 at 1:19 PM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
Dear R People: If I put in:
findPerl
Error: object 'findPerl' not found But if I use:
gdata:::findPerl
function (perl, verbose = "FALSE")
{
? ?errorMsg <- "perl executable not found. Use perl= argument to
specify the correct path."
? ?if (missing(perl)) {
? ? ? ?perl = "perl"
? ?}
? ?perl = Sys.which(perl)
? ?if (perl == "" || perl == "perl")
? ? ? ?stop(errorMsg)
? ?if (.Platform$OS == "windows") {
? ? ? ?if (length(grep("rtools", tolower(perl))) > 0) {
? ? ? ? ? ?perl.ftype <- shell("ftype perl", intern = TRUE)
? ? ? ? ? ?if (length(grep("^perl=", perl.ftype)) > 0) {
? ? ? ? ? ? ? ?perl <- sub("^perl=\"([^\"]*)\".*", "\\1", perl.ftype)
? ? ? ? ? ?}
? ? ? ?}
? ?}
? ?if (verbose)
? ? ? ?cat("Using perl at", perl, "\n")
? ?perl
}
<environment: namespace:gdata>
Why does one work but not the other, please? Thanks, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com
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Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm