On Oct 3, 2012, at 6:41 AM, James Maas (MED) wrote: > I'm new to this and struggling away with ggplot. I need to plot some line > graphs for about 4 series. I have the values to plot and also the value of > the standard error of the value. Is it possible to plot the standard error > bars when the value are already calculated as opposed to letting R do the > analysis to calculate the SE bars?
The usual way to do that in base graphics is with the arrows function using an angle of 90. > > Any simple example would be most appreciated. Hey, that's _our_ line. Solutions extended when reproducible example provided. See the standard footer. -- David Winsemius, MD Alameda, CA, USA ______________________________________________ [email protected] 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.

