Hi Peter and Spencer (and everyone else out there), Thank you for your prompt reply to my post re. FDA - FYI - i'm very new to R and FDA. Currently half way through a biostats masters degree in Sydney, Australia! Absolutely loving it and I hope to include R computing on my future CV!
Just to clarify things: When I entered what you suggested, this is what I obtained with my own dataset.... > str(isi) num [1:14] 1 1.5 2 2.5 3 3.5 4 5 7 10 ... Similarly, for Jim Ramsay's dataset (chapter five of Use R book): > str(age) num [1:31] 1 1.25 1.5 1.75 2 3 4 5 6 7 ... Doesn't this mean that my data object, 'isi' is numeric? Also, I was looking through Jim Ramsay's datasets - I'm fairly sure that my vector, 'isi' was similarly organised to his vector, 'age' in chapter 5 of his new Use R FDA book, so I'm fairly certain that the data is numeric.... but it obviously isn't.... Hope this email clarified things - apologies if it hasn't - still very new to the terminology and overall feel of R..... The R user network is terrific! Thank you for caring! Ben ________________________________ From: Peter Ehlers <ehl...@ucalgary.ca> Cc: R-help@r-project.org Sent: Fri, 23 October, 2009 5:07:15 PM Subject: Re: [R] Functional data analysis - problems with smoothing The error message is pretty clear: regardless of what *you* think, R says that 'isi' is not numeric. Are you sure that 'isi' is not a *factor* object? I'm willing to bet that it is. Use str() to check your data. -Peter Ehlers Benjamin Cheah wrote: > Hi all, > > I'm having major issues with smoothing my functional data > > I'm referring to Jim Ramsay's > examples in his books. The following error message keeps appearing, > despite all my data being numeric.... can anyone kindly offer any suggestions? > > isi - vector of argument values - i.e. the independent variable of the curves > rlz - data array > TMSfdPar - functional data parameter. > >> TMSfdPar = fdPar(TMSbasis, 4, 0.01) >> TMSfdsmooth = smooth.basis(isi, rlz, TMSfdPar) > Error in smooth.basis(isi, rlz, TMSfdPar) : 'argvals' is not numeric. > > I don't understand why the error message keeps popping up. I've tried playing > around with Jim Ramsay's datasets and I think my data is organised in a > similar manner to his, so can't understand what's going on.... oh, the > frustration! > > Thanks in advance, > > Ben > (the amateur R data analyst and statistician.....) > > > > > __________________________________________________________________________________ > > > [[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. > > __________________________________________________________________________________ [[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.
