This is almost certainly C stack overflow, which will be _very_ OS-specific. I can run this 9-var example in Linux with a stacksize of 30Mb, but not the default 10Mb. I tried it with the default stack under valgrind, and it works.
Windows versions of R have I believe a stack of 8Mb, and so I suspect are running close to that with 8-var example. The problem appears to be recursion in StripTerm. On Wed, 5 Oct 2005, Barry Rowlingson wrote: > Prof Brian Ripley wrote: > >> OK, let's try to reproduce that: >> >> >>> x1 <- runif(1000) > ... >>> y <- rnorm(1000) >>> fit <- lm(y~(x1*x2*x3*x4*x5*x6*x7*x8)^2) >> >> >> No crash, a quite reasonable fit. > > Add one more: > > > x9 <- runif(1000) > > works with 8: > > > fit <- lm(y~(x1*x2*x3*x4*x5*x6*x7*x8)^2) > > but go 'one over the eight' and: > > > fit <- lm(y~(x1*x2*x3*x4*x5*x6*x7*x8*x9)^2) > Segmentation fault > > > platform i686-pc-linux-gnu > arch i686 > os linux-gnu > system i686, linux-gnu > status > major 2 > minor 1.1 > year 2005 > month 06 > day 20 > language R > > Baz > > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
