Residuals from polyfit and LinearReg

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Residuals from polyfit and LinearReg #444080 07/30/14 04:33 07/30/14 04:33
Joined: Sep 2013 Posts: 504 California G GPEngine OP User
GPEngine OP User G Joined: Sep 2013 Posts: 504 California	polyfit and LinearReg should have a side effect of populating a global variable, perhaps rError, representing the mean squared error of the fit.

Re: Residuals from polyfit and LinearReg [Re: GPEngine] #444081 07/30/14 04:38 07/30/14 04:38
Joined: Sep 2013 Posts: 504 California G GPEngine OP User
GPEngine OP User G Joined: Sep 2013 Posts: 504 California	or some other continuous measurement of goodness of fit

Re: Residuals from polyfit and LinearReg [Re: GPEngine] #444083 07/30/14 05:09 07/30/14 05:09
Joined: Sep 2013 Posts: 504 California G GPEngine OP User
GPEngine OP User G Joined: Sep 2013 Posts: 504 California	Ah, I see that polyfit Returns Correlation coefficient, normally in the 0..1 range. Gives the similarity of the price curve and the polynom. That'll do.

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