Thanks a lot - here's is what I get: A single object matching ‘x’ was found It was found in the following places package:try with value
[1] 100 Now put in the last "xfile.RData" - and "afile.RData" is still muted Restarting R session... > library(try) > x [1] 100 > getAnywhere("x") A single object matching ‘x’ was found It was found in the following places package:try with value [1] 100 > data(afile) > x [1] 100 Whereas we know x in afile.RData is 45 So something is very wrong Sorry to be so helpless BW Troels -----Oprindelig meddelelse----- Fra: Duncan Murdoch <murdoch.dun...@gmail.com> Sendt: 13. januar 2019 12:46 Til: Troels Ring <tr...@gvdnet.dk>; package-develop <r-package-devel@r-project.org> Emne: Re: [R-pkg-devel] RData files with identical objects in package On 13/01/2019 3:38 a.m., Troels Ring wrote: > Dear friends - I have a package under creation making heavy > calculations on chemical/clinical data and I plan to include as > "examples" the use of some literature data used in my papers. To > illustrate what then occurs, I made two RData files consisting only of > x and y with different values for x and y like > > X <- 100 > > Y <- 1000 > > save(x,y,file="first.RData") > > and then a new x and y in "second" with x <- 45 and y <- 32 > > When I put these in a "data" directory of a new package without > further ado in RStudio > > Ctrl-shift-L > > Ctrl-shift-B > > > > .there is a warning > > * installing *source* package 'try' ... > > ** R > > ** data > > *** moving datasets to lazyload DB > > warning: objects 'x', 'y' are created by more than one data call > > ** byte-compile and prepare package for lazy loading > > ** help > > converting help for package 'try' > > *** installing help indices > > finding HTML links ... hello html > > done > > > > Now, when I clear the workspace: > >> ls() > character(0) >> devtools::load_all(".") > Loading try > > Restarting R session... > >> library(try) >> ls() > character(0) >> x #-- so even if workspace Is empty x is still kept > [1] 45 >> data(first) # and "first" is not seen x > [1] 45 > > > > x is still present - and y > > > > I have been reading and searching in "Writing R extensions" but so far > didn't find the clue. > > Seemingly it is the file with the last name that is assessed - when I rename > first.RData to "xfile.RData" we get 100 and 1000. > > Now and then when running ctrl-shift-L and - B we see > > > > Attaches package: 'try' > > The following objects are masked _by_ '.GlobalEnv': > x, y > Does that every happen when ls() returns character(0)? It seems likely that you have copies of them in the global workspace, and the message is correct. In the earlier situation (ls() *does* return character(0), but x is still found), you can find where it was found using getAnywhere("x") For example, > x <- 2 > getAnywhere("x") A single object matching ‘x’ was found It was found in the following places .GlobalEnv with value [1] 2 Duncan Murdoch ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel