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.....)
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