On Thu, 3 Mar 2016, Martyn Plummer wrote:
On Thu, 2016-03-03 at 15:45 +0100, Sebastien Moretti wrote:
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.
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"
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.
Actually you do not need .onLoad if you use the useDynLib directive in the
NAMESPACE file; details are in teh extensions manual at
https://cran.r-project.org/doc/manuals/r-release/R-exts.html#useDynLib
Best,
luke
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
--
Sébastien Moretti
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--
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
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