[R] Re: nonlinear least square fit of an unknown function

Vito Ricci vito_ricci at yahoo.com
Wed Feb 23 09:12:26 CET 2005


Hi Eric,
if I understand you question,  are you trying to fit
an unknown distribution? Are looking for computing
theorical frequencies (area under the curve)?
In this case you could see:
http://cran.r-project.org/doc/contrib/Ricci-distributions-en.pdf
Use hist() and density() to identify your distribution
and then fit parameters.
Another way could be using splines (?spline).
Hoping I helped you.
Cordially
Vito


you wrote:
Hi, I have a set of twelve points and wonder how I can
get a function that can then be used to calculate the
area under the curve (most important). Thanks.

Eric

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