Multiple polynomial regression

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Posted by Chris Lloyd on March 02, 1998 at 09:42:22:


I am a non mathematician so this question may seem a little
simplistic, but I hope someone can help.

I have been looking for some Fortran code for multiple
polynomial least squares regression. I have data in an
x,y,z format and I want to obtain residuals for each
data point from trends of 1st, 2nd or 3rd order
polynomials. There seems to be a vast amount of code
for regression but I haven't been able to find any for
straightforward multiple polynomial regression. I need
code in Fortran as I want to call it from existing
Fortran 77 code. Any suggestions as to where I might find
Fortran code for this purpose would be greatly

Thanks in advance.

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