Thorsten Vogel <thorsten.vogel <at> staff.hu-berlin.de> writes: > Dear List Members > > As a relatively new R user I am extremely glad for there being a nice > tool such as ggplot for producing easily nice graphs in R. Now I want to > produce graphs with two y-axis. I know that this has been asked a > hundred times with respect to standard plots in R. (The answer, to my > knowledge, has always been "No" or "No, see the help archive".) But: Is > there a more straightforward way IN GGPLOT to draw several lines in one > graphs using two different scales and displaying these two scales on the > y-axis and the, say, z-axis? Seems to be an obvious extensions of > typical plot commands but I can't find any suggestions how to do it. > > Many thanks for any suggestions or hints. > > Best, > Thorsten
Don't know the answer for ggplot, but just for the record: the answer to the basic-plot question is "(1) not automatically in base R; (2) see the R wiki for commands to do this in base R without two much trouble; (3) see twoord.plot in the plotrix package; (4) there are lots of good reasons not to do this (again see the R wiki)." cheers Ben Bolker ______________________________________________ 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.
