[R-pkg-devel] Namespace problem with pre-R 3.0.0 package
I have just found that R 2 filled by itself the NAMESPACE file with
# Export all names
exportPattern(".")
# Import all packages listed as Imports or Depends
import(
cluster
)
So I filled the NAMESPACE file with that and gave it to R 3
Now functions are found!
Is it enough to do that?
Yes. Even in the latest version of R, "R CMD build" will create a default NAMESPACE file like that for you if one does not exist.
The package contained an empty NAMESPACE file. That's maybe why it failed.
Is it good practice to do that?
No. The Writing R Extensions manual says "such broad patterns are not recommended for production code: it is better to list all exports or use narrowly-defined groups"
Will export only required functions once identified. Functions are available now! Thanks Will compare results with R 2 and 3 to see if I did not break something.
is .onLoad ... still required?
Yes, if your package has compiled code (e.g. C, C++, Fortran) then the .onLoad function is required to load it into R. Martyn
Regards
Hi
I have issues with an R package developed in 2004.
It works perfectly in R < 3.
It can be installed in R > 3 but functions are not available.
Documentation I found is not really helpful for me who are not an R
master.
I have already fixed some problems with R CMD check but remaining
ones
are less trivial.
For what I understand - with R < 3 - everything is loaded with this
command in an R file in the R/ directory:
.First.lib <- function(lib, pkg) library.dynam("jacop", pkg, lib);
require("cluster")
Now I replaced that with
.onLoad <- function(lib, pkg) {library.dynam("jacop", pkg, lib);
require("cluster")}
but functions are not found when called.
NAMESPACE exists but is empty.
Any idea how to solve that?
Regards
-- S?bastien Moretti