It's odd, possibly a bug, that you don't get Error: object 'nphi' not found
but I can't offhand see where the evaluation of args to .C/.Fortran is supposed to take place. -pd > On 13 Aug 2018, at 11:54 , Rolf Turner <r.tur...@auckland.ac.nz> wrote: > > > On 13/08/18 20:45, Henrik Bengtsson wrote: > >> On Mon, Aug 13, 2018 at 3:51 AM Rolf Turner <r.tur...@auckland.ac.nz> wrote: >>> >>> >>> OK everybody! You can relax. :-) I managed to spot the loony. After >>> mucking around with valgrind, and before trying gdb, I had one more look >>> at my code and *finally* saw the stupid thing that I had been doing. >>> >>> In the call to .Fortran() I had a line >>> >>> nphi=as.integer(nphi), >>> >>> but "nphi" was nowhere defined (!!!) in the R code. The name "nphi" >>> appeared as an argument in the Fortran subroutine in question, but was >>> nowhere actually *used*!!! >> Didn't R CMD check pick this up, that is, didn't it report that 'nphi' >> is a "global" variable? > > No it didn't. The name only appears in the call to .Fortran(). I think if > it appeared in a call to an ordinary garden-variety R function then a warning > would have been issued. > > Such a lapse would be hard for R CMD check to pick up. E.g > > nphi=integer(1), > > would be OK in a call to .Fortran (which would allow a value of nphi, > calculated within the called subroutine, to be *returned*) whereas > > nphi=as.integer(nphi), > > causes trouble when nphi has never been defined (as I found out after a great > expenditure of time and torn-out hair). In the former instance it doesn't > matter an FTCF whether nphi has been defined or not. > > cheers, > > Rolf > > -- > Technical Editor ANZJS > Department of Statistics > University of Auckland > Phone: +64-9-373-7599 ext. 88276 > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
