I'd suggest using lines() rather than points() to add lines to a plot. The parameter to change line width is lwd rather than cex.
e.g. lines(x, Sobs$Chao_1_Mean, col="Gray", lwd=2) Reading ?par can be both an enlightening and confusing experience. Sarah On Mon, Jul 9, 2012 at 1:11 PM, peziza <jenkere...@gmail.com> wrote: > I am trying to make the lines thicker in a graph (for a ppt presentation). > > Here is what I currently have: > > plot(x,y,type="l", ylab="Number of OTUs", xlab="Number of Samples > Collected", col="Black", pch=1, ylim=c(0,6000)) > > points(x, Sobs$Chao_1_Mean, type="l", col="Gray", pch=1) (this is one of the > added lines in the graph). > > I believe cex can help increase the size of the points. But I haven't been > able to get it to work. > > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
