I don't have any idea where you came up with superpose.ep - rseek.org doesn't return any results for a function of that name.
If you check the package information for gplots you'll see that plotCI() is available to plot error bars. There's also the errbar() function from hmisc, and probably several others. Sarah On Thu, Jun 3, 2010 at 11:33 AM, Rosario Garcia Gil <m.rosario.gar...@genfys.slu.se> wrote: > Dear R users, > > I am trying to draw error bars in a bar plot, I use this code (tried many > others which did not work): > > install.packages() > library(gplots) > y <-c(39.02, 46.42) > se <- c(7.57,7.35) > plot <- barplot(y, beside=TRUE, col=0, ylim=c(0,47), axis.lty=1, > main="far-red", xlab="latitude", names.arg=c("56N", "68N")) > superpose.eb(plot, y, se, col="orange", lwd=2) > > Then I get an error saying that it cannot find the superpose.eb function. > > Why? Isn“t under gplots? > -- 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.