vikrant wrote:
Yes I do have zeros in my data. But I m not able to understand y inclusion of
zeros results in error messages, because range for x in weibull distribution
is x>=0. Can you please clarify this doubt?
Well, that's a matter of definition (and is a problem if
the shape parameter is <= 1).
fitdistr() seems to take the range to be x > 0.
As I said, when no start values are provided, fitdistr()
will have a 'problem' with zeros because the first thing
it does is log(x), easy to see in the code.
But try pelwei() in package lmom, as suggested by
Jonathan Hosking.
-Peter Ehlers
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