Re: [R] Approximate taylor series

Regress on a multivariate polynomial: lm(y ~ polym(x1, x2, x3, x4, degree = 3)) See ?polym __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www

[R] Approximate taylor series

Hi All, Say I have the values of function f(x1,x2,x3,x4) for each values of x1,x2,x3,x4 but not complete. But the functional form is not known. Techniques like regression, etc. are not able to give me satisfactory results and msy be more complex than we thought. I wanted to use Taylor's approxim