Awesome! Thanks for the fix Dennis, and thanks for clearing up aes() too. It makes sense now. Cheers,
MVS ===== Matthew Van Scoyoc Graduate Research Assistant, Ecology Wildland Resources Department <http://www.cnr.usu.edu/wild/> & Ecology Center <http://www.usu.edu/ecology/> Quinney College of Natural Resources <http://cnr.usu.edu/> Utah State University Logan, UT <mvansco...@aggiemail.usu.edu>https://sites.google.com/site/scoyoc/ ===== Think SNOW! On Tue, Nov 19, 2013 at 5:52 PM, Dennis Murphy <djmu...@gmail.com> wrote: > The additional element comes from this code: > > geom_point(aes(color = VegType, shape = VegType, size = 10)) > > Take the size argument outside the aes() statement and the legend will > disappear: > > geom_point(aes(color = VegType, shape = VegType), size = 10) > > The aes() statement maps a variable to a plot aesthetic. In this case > you're mapping VegType to color and shape. You want to *set* the size > aesthetic to a constant value, and that is done by assigning the value > 10 to the size aesthetic outside of aes(). > > Dennis > > On Tue, Nov 19, 2013 at 4:35 PM, Matthew Van Scoyoc <sco...@gmail.com> > wrote: > > No dice. I still get the "10" legend element. > > Thanks for the quick reply. > > Cheers, > > > > MVS > > ===== > > Matthew Van Scoyoc > > Graduate Research Assistant, Ecology > > Wildland Resources Department <http://www.cnr.usu.edu/wild/> & Ecology > > Center <http://www.usu.edu/ecology/> > > Quinney College of Natural Resources <http://cnr.usu.edu/> > > Utah State University > > Logan, UT > > > > <mvansco...@aggiemail.usu.edu>https://sites.google.com/site/scoyoc/ > > ===== > > Think SNOW! > > > > > > On Tue, Nov 19, 2013 at 5:12 PM, David Winsemius <dwinsem...@comcast.net > >wrote: > > > >> > >> On Nov 19, 2013, at 3:44 PM, Matthew Van Scoyoc wrote: > >> > >> > I can't get the fine tuning right with my legend. I get an extra > legend > >> > element "10" which is the point size in my plot. Can someone help me > get > >> rid > >> > of this extra element? Additionally I would also like to reduce the > size > >> of > >> > the legend. > >> > > >> > If you want to reproduce my figure you can download my data in csv > >> format > >> > here > >> > < > >> > https://github.com/scoyoc/EcoSiteDelineation/blob/master/VegNMDS_scores.csv > >> >> > >> > . > >> > > >> > Here is my code... > >> > > >> >> veg.nmds.sc = read.csv("VegNMDS_scores.csv", header = T) > >> > > >> >> nmds.fig = ggplot(data = veg.nmds.sc, aes(x = NMDS1, y = NMDS2)) > >> >> nmds.fig + geom_point(aes(color = VegType, shape = VegType, size = > 10)) > >> + > >> >> scale_colour_manual(name = "Vegetation Type", > >> >> values = c("blue", "magenta", "gray50", "red", > >> >> "cyan3", > >> >> "green4", "gold")) + > >> >> scale_shape_manual(name = "Vegetation Type", values = c(15, 16, 17, > 18, > >> >> 15, 16, 17)) + > >> >> theme_bw() + > >> >> theme(panel.background = element_blank(), panel.grid.major = > >> >> element_blank(), > >> >> panel.grid.minor = element_blank(), > >> >> legend.key = element_rect(color = "white") > >> >> ) > >> > > >> > I have been messing around with > >> >> theme(..., legend.key.size = unit(1, "cm")) > >> > but I keep getting the error "could not find function unit". I'm not > sure > >> > why, isn't unit supposed to be part of the legend.key argument? > >> > >> Try this workaround to what sounds like a bug: > >> > >> library(grid) > >> > >> # then repeat the call. > >> > >> -- > >> > >> David Winsemius > >> Alameda, CA, USA > >> > >> > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.
