[R] Help with DLLs

[Uwe Ligges]

"Jane L. Harvill" wrote:
> 
> I'm using R version 1.5.1, and Microsoft Developer Studio 97 (yes, I know
> it's old, but it's expensive to upgrade) on Windows 98.  I created the DLL
> file with the compiler.  The name of the file containing the subroutine is
> leaf.f and the subroutine is named leaf.f. In my R program (which defines
> a function called leaf), I have
>         x <- .Fortran("leaf",...)

If your subroutine is called "leaf.f", it's a good idea to call this
one, but not "leaf".

Uwe Ligges


> where the ... are the arguments passed.  I source("leaf.s"), and then
> dyn.load("leaf.dll"), and when I run leaf(100), I get the following error
> 
> Error in .Fortran("leaf",as.integer(nn),as.double(u),as.double(A), :
>          C/Fortran function name not in load table
> 
> Does anyone know what is causing this error message and how to fix the
> problem?
> Incidentally, the same code works FINE on the Unix version of R, but I was
> hoping to transfer it to my PC so that I could use it in a presentation
> without having to rely on an unreliable internet connection.
> 
> Any words of wisdom are greatly appreciated.
> 
> Sincerely,
> Jane Harvill
> 
> Dr. Jane L. Harvill, Ph.D.
> Department of Mathematics and Statistics
> Drawer MA
> Mississippi State, Mississippi 39762
> Phone: (662) 325-3414
> FAX:   (662) 325-0005
> URL:   http://www2.msstate.edu/~harvill/
> 
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