Follow up: I finally succeeded to more or less reproduce the error. The origin lied in the fact that I accidently loaded a function while being in browser mode for debugging that function. So something went very much wrong with the namespaces. Teaches me right...
Cheers Joris On Wed, Jul 28, 2010 at 2:27 PM, Joris Meys <[email protected]> wrote: > Dear all, > > it gets even more weird. After restarting R, the code I used works > just fine. The call is generated in a function that I debugged using > browser(). Problem is solved, but I have no clue whatsoever how that > error came about. It must have something to do with namespaces, but > the origin is dark. I tried to regenerate the error, but didn't > succeed. > > Somebody an idea as to where I have to look for a cause? > > Cheers > Joris > > On Wed, Jul 28, 2010 at 1:16 PM, Joris Meys <[email protected]> wrote: >> Dear all, >> >> I run a gamm with following call : >> >> result <- try(gamm(values~ s( VM )+s( RH )+s( TT )+s( PP >> )+RF+weekend+s(day)+s(julday) ,correlation=corCAR1(form=~ day|month >> ),data=tmp) )" >> >> with mgcv version 1.6.2 >> >> No stress about the data, the error is not data-related. I get : >> >> Error in isS4(x) : object 'VM' not found >> >> What so? I did define the dataframe to be used, and the dataframe >> contains a variable VM : >> >>> str(tmp) >> 'data.frame': 4014 obs. of 12 variables: >> $ values : num 73.45 105.45 74.45 41.45 -4.55 ... >> $ dates :Class 'Date' num [1:4014] 9862 9863 9864 9865 9866 ... >> $ year : num -5.65 -5.65 -5.65 -5.65 -5.65 ... >> $ day : num -178 -177 -176 -175 -174 ... >> $ month : Factor w/ 156 levels "1996-April","1996-August",..: 17 17 >> 17 17 17 17 17 17 17 17 ... >> $ julday : num -2241 -2240 -2239 -2238 -2237 ... >> $ weekend: num -0.289 -0.289 -0.289 0.711 0.711 ... >> $ VM : num 0.139 -1.451 0.349 0.839 -0.611 ... >> $ RH : num 55.2 61.4 59.8 64.1 60.7 ... >> $ TT : num -23.4 -23.6 -19.5 -16.1 -15.3 ... >> $ PP : num 6.17 4.27 -4.93 -9.23 -2.63 ... >> $ RF : Ord.factor w/ 3 levels "None"<"<2.5mm"<..: 1 1 1 1 1 1 1 1 1 1 >> ... >> - attr(*, "means")= num >> >> Any idea what I'm missing here? >> >> Cheers >> Joris >> >> >> -- >> Joris Meys >> Statistical consultant >> >> Ghent University >> Faculty of Bioscience Engineering >> Department of Applied mathematics, biometrics and process control >> >> tel : +32 9 264 59 87 >> [email protected] >> ------------------------------- >> Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php >> > > > > -- > Joris Meys > Statistical consultant > > Ghent University > Faculty of Bioscience Engineering > Department of Applied mathematics, biometrics and process control > > tel : +32 9 264 59 87 > [email protected] > ------------------------------- > Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php > -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel : +32 9 264 59 87 [email protected] ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php ______________________________________________ [email protected] mailing list 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.

