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inlinefunction
2011 May 02
2
easy way to do a 2-D fit to an array of data?
...for the sake of argument Z is 128x128)
foo<-matrix(seq(1,128),128,128)
xvec <- as.vector(foo)
yvec <- as.vector(t(foo))
at which point I can feed zvec, xvec, yvec to lm() .
I'm hopeful someone can point me to a much easier way to do the same
thing. Oh, and if there's a 2-D splinefunction generator, that would
work for me as well.
thanks
Carl