Re: Curve fitting - forcing intercept to zero

On 6/12/2006 7:03 PM, Andrew L wrote:
I'm using the functions polyfit and polyval to fit first and second
order polynomial curves to two vectors of data and to evaluate the
resulting fit. Is there a method for forcing the intercept to a value
of zero? If this does not exist as a specific option, are there any
workarounds that might accomplish this?

Thanks in advance for any thoughts or tips.

There's a method ... and it is almost always a very bad idea. Why do you want to force the intercept to 0?

--
Paige Miller
pmiller5@xxxxxxxxxxxxxxxx

It's nothing until I call it -- Bill Klem, NL Umpire
If you get the choice to sit it out or dance,
I hope you dance -- Lee Ann Womack
.

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