[EMAIL PROTECTED] writes: > Dette er en melding med flere deler i MIME-format. > --=_alternative 004613C000257091_= > Content-Type: text/plain; charset="US-ASCII" > > And some more informastion I forgot. > R does not crash if I write out the formula: > > set.seed(123) > x1 <- runif(1000) > x2 <- runif(1000) > x3 <- runif(1000) > x4 <- runif(1000) > x5 <- runif(1000) > x6 <- runif(1000) > x7 <- runif(1000) > x8 <- runif(1000) > y <- rnorm(1000) > fit <- lm(y~(x1*x2*x3*x4*x5*x6*x7*x8)^2) > -> R crashes > > fit <- lm(y~x1+x2+x3+x4+x5+x6+x7+x8 > +x1:x2+x1:x3+x1:x4+x1:x5+x1:x6+x1:x7+x1:x8 > +x2:x3++x2:x4+x2:x5+x2:x6+x2:x7+x2:x8 > +x3:x4+x3:x5+x3:x6+x3:x7+x3:x8 > +x4:x5+x4:x6+x4:x7+x4:x8 > +x5:x6+x5:x7+x5:x8 > +x6:x7+x6:x8 > +x7:x8) > -> R does not crash > This is the same formula, at least it should be.
It isn't and it shouldn't. (Try it for smaller values of 8) y~(x1+x2+x3+x4+x5+x6+x7+x8)^2 should be same as the second formula, modulo the syntax error. -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
