[R] using nls to fit a curve to data
s-jlubben1 at math.unl.edu
Fri Sep 5 16:16:48 CEST 2008
I am trying to fit a curve to data. My command line is:
I get the error message:
Error in numericDeriv(form[], names(ind), env) :
Missing value or an infinity produced when evaluating the model
In addition: Warning message:
full precision was not achieved in 'gammafn'
My starting values yield a curve very similar t to other models which I
fitted successfully. So any suggestions? I've tried different starting
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