Thanks for everyone's attention on this issue! On Thu, May 7, 2009 at 11:20 AM, Phil Spector <spec...@stat.berkeley.edu>wrote:
> Theoph is in the datasets package, so it should be available in all > versions of R: > > class(Theoph) >> > [1] "nfnGroupedData" "nfGroupedData" "groupedData" "data.frame" > > The key to what's happening is that there are some methods > for groupedData objects in the nlme library, which I suspect > the original poster had loaded in Windows, but not Unix. > > Here's what I see on a Linux system: > > all(paste(Theoph[1],Theoph[2])==paste(Theoph[[1]],Theoph[[2]])) >> > [1] FALSE > >> library(nlme) >> all(paste(Theoph[1],Theoph[2])==paste(Theoph[[1]],Theoph[[2]])) >> > [1] TRUE > > So if nlme is loaded, the following methods are available for groupedData > objects: > > methods(class='groupedData') >> > [1] as.data.frame.groupedData* asTable.groupedData* > [3] collapse.groupedData* formula.groupedData* > [5] [.groupedData* isBalanced.groupedData* > [7] lme.groupedData* lmList.groupedData* > [9] print.groupedData* update.groupedData* > > Thus subscripting for these objects is performed differently when > the nlme package is loaded. > - Phil Spector > Statistical Computing Facility > Department of Statistics > UC Berkeley > spec...@stat.berkeley.edu > > > > On Thu, 7 May 2009, Gavin Simpson wrote: > > On Thu, 2009-05-07 at 09:38 -0500, Jun Shen wrote: >> >>> Hi, everyone, >>> >>> Try the following command to see if you get TRUE or FALSE. I get FALSE on >>> a >>> unix platform but TRUE on Windows. Any comment? >>> >>> all(paste(Theoph[1],Theoph[2])==paste(Theoph[[1]],Theoph[[2]])) >>> >> >> And what is Theoph? Please do read the posting guide and provide a >> reproducible example. >> >> Is Theoph a list? >> >> a <- list(A = rnorm(10), B = rnorm(10)) >>> paste(a[1], a[2]) >>> >> [1] "c(0.511810414967963, 0.165995305876871, 1.22637694512945, >> -0.496453787173788, 0.325876407556065, 1.97392856823209, >> -0.228962880984580, -0.172306887133861, -0.881280038259407, >> -0.216958955239245) c(-0.281058662811336, 0.918418337792562, >> -1.44005513590710, 0.22857441100305, 0.840138552938062, >> 0.0555436312146647, -0.602645008995437, -0.158866265592772, >> 0.959478898002479, -0.892389972305427)" >> >>> paste(a[[1]], a[[2]]) >>> >> [1] "0.511810414967963 -0.281058662811336" >> [2] "0.165995305876871 0.918418337792562" >> [3] "1.22637694512945 -1.44005513590710" >> [4] "-0.496453787173788 0.22857441100305" >> [5] "0.325876407556065 0.840138552938062" >> [6] "1.97392856823209 0.0555436312146647" >> [7] "-0.228962880984580 -0.602645008995437" >> [8] "-0.172306887133861 -0.158866265592772" >> [9] "-0.881280038259407 0.959478898002479" >> [10] "-0.216958955239245 -0.892389972305427" >> >>> typeof(a[[1]]) >>> >> [1] "double" >> >>> typeof(a[1]) >>> >> [1] "list" >> >> If it is, note that [ and [[ do not return the same thing for a list and >> as such it is not surprising that they are not equal, pasted or >> otherwise. >> >> G >> -- >> %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% >> Dr. Gavin Simpson [t] +44 (0)20 7679 0522 >> ECRC, UCL Geography, [f] +44 (0)20 7679 0565 >> Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk >> Gower Street, London [w] >> http://www.ucl.ac.uk/~ucfagls/<http://www.ucl.ac.uk/%7Eucfagls/> >> UK. WC1E 6BT. [w] http://www.freshwaters.org.uk >> %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% >> >> ______________________________________________ >> R-help@r-project.org 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. >> >> -- Jun Shen PhD PK/PD Scientist BioPharma Services Millipore Corporation 15 Research Park Dr. St Charles, MO 63304 Direct: 636-720-1589 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org 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.
