[R] R square in NLS-urgent help

[Peter Dalgaard]

ruchita gupta wrote:
> Hello
> 
> I need one urgent help

The urgency is entirely on your part, and you are not going to get an
answer more quickly by posting several times!

> I am trying to fit the Sigmod curve of logistic growth model using NLS
> estimation.
> But i do not get the R square value in that even after getting the "Summary"
> In that case how to compare the fit for 3 models and find which one is
> better fit??
> 
> How to get this R Square value when using NLS estimation?
> 
> Thanks
> Ruchita
> 
> 	[[alternative HTML version deleted]]
> 
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