On 20.08.2011 00:41, Eduardo Mendes wrote:
Hi
I have modified the path to
dyn.load(paste(Sys.getenv("R_LIBS_USER"),"/fortran/src/fortran.so",sep=""))
Hmmm, looks like you never took a look into the relevant manual "Writing
R Extensions" nor in the help files I cited below.
?.First.lib has an example:
## Suppose a package needs to call a DLL named 'fooEXT',
## where 'EXT' is the system-specific extension. Then you should use
.First.lib <- function(lib, pkg)
library.dynam("foo", pkg, lib)
You cannot know that the package is in Sys.getenv("R_LIBS_USER")
Note also that the .so file won't be in the path ..../src/... but in
.../lib/... once you install the package in the recommended way using R
CMD INSTALL.
Really, please do read manual!!!
and the package could installed, loaded and the lines with dyn.load worked.
It does not look like a pretty solution but works on my linux (I am not sure
if it works on my mac or windows).
I am not sure if this is what you meant but as I have no clue what
.First.lib does or NAMESPACES means this is the best I come up with.
So again time to read the manual and the help pages.
Best,
Uwe Ligges
Please correct me if I am wrong.
Many thanks
Ed
On Fri, Aug 19, 2011 at 6:03 PM, Uwe Ligges<lig...@statistik.tu-dortmund.de
wrote:
On 19.08.2011 22:53, Eduardo Mendes wrote:
Dear R-users
I am slowly migrating my mex files (MATLAB - Fortran and C) to R. To get
my
own functions available on R section I have decided to learn how to build
a
R package. I choose a simple example with a few Fortran and R functions
(wrapper).
The fortran sources are located at src and the R functions at R (as
recommended). The building process went ok but R CMD check did not. The
error mgs was
Error in dyn.load("fortran.so") :
unable to load shared object
'/home/eduardo/R_packages/**test.Rcheck/fortran.so':
Although I can see that R cannot find the compiled fortran code I do not
know what to do. I believe it is something to do with the following
lines
in the R-wrapper file
if (!is.loaded('calnpr'))
dyn.load("fortran.so")
1. If the package is called calnpr, the shared library is also called that
way.
2. you have to provide the path to the shared library.
See ?.First.lib for how to do it in a package without NAMESPACE (and note
that NAMESPACES are forced for the next R release).
Best,
Uwe Ligges
How to add the path so that once the package is installed the compiled
fortran code can be found?
Many thanks
Cheers
Ed
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