[R] Fortran (77) in R

[Göran Broström]

On Tue, 9 Apr 2002, Ko-Kang Kevin Wang wrote:

> On 9 Apr 2002, Peter Dalgaard BSA wrote:
> 
> > Date: 09 Apr 2002 10:13:30 +0200
> > From: Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk>
> > To: Ko-Kang Kevin Wang <kwan022 at stat.auckland.ac.nz>
> > Cc: R Help <r-help at stat.math.ethz.ch>
> > Subject: Re: [R] Fortran (77)  in R
> > 
> > Ko-Kang Kevin Wang <kwan022 at stat.auckland.ac.nz> writes:
> > 
> > > Hi,
> > > 
> > 
> > It cannot find the entry point "Fibonacci" in your .so file. What is
> > the name of the subroutine you are trying to call? One possible issue
> > is that Fortran is not case sensitive, so it might be "fibonacci",
> > whichever way you spelled it originally. "nm Fibonacci.so" could be
> > enlightening.
> 
> I've doubled checked my spelling, my Fortran program looks like:
> c23456789
>       SUBROUTINE Fibonacci(num)
>       IMPLICIT NONE
>       INTEGER num, i, fib, prev1, prev2
>       prev1 = 1
>       prev2 = 0
>       DO 10 i = 0, num
>         fib = prev1 + prev2
>         prev2 = prev1
>         prev1 = fib
> 10     continue
>        return
>       END SUBROUTINE
[...]

Did you check the case matter Peter mentioned? Besides, your subroutine 
doesn't seem to do anything useful...

Göran


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-- 
 Göran Broström                      tel: +46 90 786 5223
 professor                           fax: +46 90 786 6614
 Department of Statistics            http://www.stat.umu.se/egna/gb/
 Umeå University
 SE-90187 Umeå, Sweden             e-mail: gb at stat.umu.se

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