Re: How to get Correlation factor?

[Paul Kienzle]

ASG wrote:

> I  have two-dimensional data, which I want to fit with a linear regression. I 
> get nice results with 
>
> [p, yf] = polyfit (x, y, 2)
>
> And now I need the correlation factor...
> Is there a nice way to calculate this?
>
> It would be also quite good, if anybody knows how to calculate the MSWD (Mean 
> Square Weighted Deviation)  for a linear regression?
octave-forge/main/optim (http://octave.sf.net) has wpolyfit to do a 
weighted polynomial fit.  It also
returns an error estimate for the parameters.

Paul Kienzle
address@hidden

>  




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