Re: [R] Mysterious seg fault --- SOLVED
Ah, if I'd had a fortune for every time I invoked the wrath of the IT gods and the malicious work of their gremlins, I'd be an obscenely wealthy person by now. More seriously, I can't tell you how much I appreciate the joyous flickers of humour here, amidst all the pain and suffering (yes, I may be projecting a bit here), and the welcome, vital, but often humiliating genius many contributors bring as it underlines how low my statistical and computing IQ is. I have Rolf as #1 for self-deprecating humour on r-help. Keep rescuing my sense of humour on my gremlin-beset days please Rolf, all! Chris - Original Message - > From: "Rolf Turner" > To: "Richard M. Heiberger" > Cc: r-help@r-project.org, "Achim Zeileis" , "peter > dalgaard" , "Henrik > Bengtsson" > Sent: Wednesday, 15 August, 2018 04:58:32 > Subject: Re: [R] Mysterious seg fault --- SOLVED > On 15/08/18 13:00, Richard M. Heiberger wrote: >> There is no explanation other than gremlins and the malevolence that >> the computer gods hold towards me. >> >> fortune nomination. > > I demur. I already have a fortune with gremlins in it attributed to me > (fortune(213)). > > 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. __ 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.
Re: [R] Mysterious seg fault --- SOLVED
On 15/08/18 13:00, Richard M. Heiberger wrote: There is no explanation other than gremlins and the malevolence that the computer gods hold towards me. fortune nomination. I demur. I already have a fortune with gremlins in it attributed to me (fortune(213)). 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.
Re: [R] Mysterious seg fault --- SOLVED
There is no explanation other than gremlins and the malevolence that the computer gods hold towards me. fortune nomination. On Tue, Aug 14, 2018 at 7:12 PM, Rolf Turner wrote: > On 14/08/18 23:01, peter dalgaard wrote: >> >> Hmm, >> >>> .Fortran(stats:::C_setsmu, as.integer(0)) >> >> [[1]] >> [1] 0 >> >>> .Fortran(stats:::C_setsmu, as.integer(fumble)) >> >> Error: object 'fumble' not found >>> >>> .Fortran(stats:::C_setsmu, fumble=as.integer(fumble)) >> >> Error: object 'fumble' not found >>> >>> .Fortran(stats:::C_setsmu, nphi=as.integer(nphi)) >> >> Error: object 'nphi' not found >> >> so I think we need an alternative hypothesis about what went wrong for >> you... >> >> If nphi was NULL from the outset, that could explain things. > > > No, I never set nphi to NULL. > > I put the code back to the way it was previously, just now, and tried again. > Now I get "object 'nphi' not found". > > There is no explanation other than gremlins and the malevolence that the > computer gods hold towards me. > > 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. __ 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.
Re: [R] Mysterious seg fault --- SOLVED
On 14/08/18 23:01, peter dalgaard wrote: Hmm, .Fortran(stats:::C_setsmu, as.integer(0)) [[1]] [1] 0 .Fortran(stats:::C_setsmu, as.integer(fumble)) Error: object 'fumble' not found .Fortran(stats:::C_setsmu, fumble=as.integer(fumble)) Error: object 'fumble' not found .Fortran(stats:::C_setsmu, nphi=as.integer(nphi)) Error: object 'nphi' not found so I think we need an alternative hypothesis about what went wrong for you... If nphi was NULL from the outset, that could explain things. No, I never set nphi to NULL. I put the code back to the way it was previously, just now, and tried again. Now I get "object 'nphi' not found". There is no explanation other than gremlins and the malevolence that the computer gods hold towards me. 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.
Re: [R] Mysterious seg fault --- SOLVED
Hmm, > .Fortran(stats:::C_setsmu, as.integer(0)) [[1]] [1] 0 > .Fortran(stats:::C_setsmu, as.integer(fumble)) Error: object 'fumble' not found > .Fortran(stats:::C_setsmu, fumble=as.integer(fumble)) Error: object 'fumble' not found > .Fortran(stats:::C_setsmu, nphi=as.integer(nphi)) Error: object 'nphi' not found so I think we need an alternative hypothesis about what went wrong for you... If nphi was NULL from the outset, that could explain things. -pd > On 14 Aug 2018, at 01:16 , Rolf Turner wrote: > > On 13/08/18 23:39, peter dalgaard wrote: >> 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. > > If it is indeed a bug then it would be nice an it were fixed. If that is > possible. Way beyond my level of comprehension but. > > cheers, > > Rolf > > -- > Technical Editor ANZJS > Department of Statistics > University of Auckland > Phone: +64-9-373-7599 ext. 88276 -- 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.
Re: [R] Mysterious seg fault --- SOLVED
On 13/08/18 23:39, peter dalgaard wrote: 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. If it is indeed a bug then it would be nice an it were fixed. If that is possible. Way beyond my level of comprehension but. 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.
Re: [R] Mysterious seg fault --- SOLVED
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 wrote: > > > On 13/08/18 20:45, Henrik Bengtsson wrote: > >> On Mon, Aug 13, 2018 at 3:51 AM Rolf Turner 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.
Re: [R] Mysterious seg fault --- SOLVED
On 13/08/18 20:45, Henrik Bengtsson wrote: On Mon, Aug 13, 2018 at 3:51 AM Rolf Turner 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.
Re: [R] Mysterious seg fault --- SOLVED
On Mon, Aug 13, 2018 at 3:51 AM Rolf Turner 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? /Henrik > > It seems that passing a non-existent value as an argument to a Fortran > subroutine can *sometimes* confuse it. Understandably. > > I think that this "nphi" was a left-over from an earlier version of the > code. I must have changed the code so that nphi was no longer needed, > but then forgot to remove it from some places. Psigh! I hate myself > sometimes. > > Anyhow, thanks to all those who took the time and made the effort to try > to help me. > > 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. __ 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.
Re: [R] Mysterious seg fault --- SOLVED
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*!!! It seems that passing a non-existent value as an argument to a Fortran subroutine can *sometimes* confuse it. Understandably. I think that this "nphi" was a left-over from an earlier version of the code. I must have changed the code so that nphi was no longer needed, but then forgot to remove it from some places. Psigh! I hate myself sometimes. Anyhow, thanks to all those who took the time and made the effort to try to help me. 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.
