Dear Bert,
so what can I do to obtain a goodness of fit for a non-linear model if
r² does not work?
And here comes my next question: is it apropriate to comopare a linear
and a non-linear model with anova()?
Thank you so much for answering,
Anna
Am 16.03.2011 18:54, schrieb Bert Gunter:
Is there any way that this could be made into a fortune -- perhaps by
omitting the poster's identity?
"yes there are threads concidering this topic but they are all about the
theory not about how to get the value of r^2 for a non-linear model in R."
:=)
Cheers,
Bert
Anna: I say this because you have just been told that the "theory"
tells you that you CANNOT calculate R^2 for a nonlinear model.
On Wed, Mar 16, 2011 at 10:25 AM, Anna Gretschel<[email protected]> wrote:
Am 16.03.2011 18:15, schrieb David Winsemius:
On Mar 16, 2011, at 12:53 PM, Anna Gretschel wrote:
Dear List,
how can I obtain the value of r suqared for a non-linear model? For
linear models it can be found in the summary() of the model but for
non-linear models I just don't know. Please help!
You should do more searching. I can remember at least two threads in the
last few years that discussed this issue.
yes there are threads concidering this topic but they are all about the
theory not about how to get the value of r^2 for a non-linear model in R.
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