> I used the function lm() to calculate the coefficients of a polynome. If I > used > the function poly(t,2) to denote a polynome of form 1 + x + x^2, the > coefficients are wrong.
If you take a look at the manual page for poly, you will find that poly (by default) will calculate _orthogonal_ polynomials, which are not the same as 1, x, x^2, etc. -- Bjørn-Helge Mevik ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel