Dear list,
how can I compute the inverse of the X'WX matrix ("inverse of the weighted sum
of squares and crossproducts matrix") from an object of class "lm" from a
weigthed linear regression?Thanks, Sven ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
