On Tue, 23 Jan 2007, Spencer Graves wrote: > Consider the following: > > plot(0, 0, xlim=c(-10, 10), ylim=c(-50, 50)) > lines(c(0,0), (2*c(-pi, pi))^2) > > I see no line in this plot.
I do. You are drawing a line from a point to itself. Try lwd=5 and it will be more visible. > > R version 2.4.1 (2006-12-18) > i386-pc-mingw32 > > locale: > LC_COLLATE=English_United States.1252;LC_CTYPE=English_United > States.1252;LC_MONETARY=English_United > States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 > > attached base packages: > [1] "stats" "graphics" "grDevices" "utils" "datasets" "methods" > [7] "base" > > My work around is the following: > > pi2.2 <- (2*pi)^2 > lines(c(0, 0), c(-pi2.2, pi2.2)) What is (-1)^2? > Why won't "lines(c(0,0), (2*c(-pi, pi))^2)" work for me? > Thanks, > Spencer Graves > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > -- 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
