Talk:Polynomial regression: Difference between revisions

== Fortran matmul use ==

I am re working the Fortran example to use in a Delphi project.

The matrix multiply at the end of the example looks to be in the incorrect order.

I believe it should be.

polyfit = matmul( XTX, matmul(XT, vy))

I would appreciate if somebody with the Fortran language available could confirm.