[Offtopic] Line fitting [was Re: Numpy outlier removal]
Maarten
maarten.sneep at knmi.nl
Tue Jan 8 11:47:52 EST 2013
On Tuesday, January 8, 2013 10:07:08 AM UTC+1, Terry Reedy wrote:
> With the line constrained to go through 0,0, a line eyeballed with a
> clear ruler could easily be better than either regression line, as a
> human will tend to minimize the deviations *perpendicular to the line*,
> which is the proper thing to do (assuming both variables are measured in
> the same units).
In that case use an appropriate algorithm to perform the fit. ODR comes to mind. http://docs.scipy.org/doc/scipy/reference/odr.html
Maarten
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