Re: Polynomial regression - Warning

["Morten Welinder" <mwelinder gmail com>]

Unfortunately we cannot really know if the user's use of the tool is sane.
Yes, a chain saw can be dangerous but it is fundamentally a good tool
when used right.

What we can do -- at least for the GUI regression tool -- is to check the
condition number of the relevant matrix.  We do that already and warn
when the result starts to lose significance.  And err when it is completely
gone.

Morten