> On Sep 18, 2016, at 11:05 AM, Troels Ring <tr...@gvdnet.dk> wrote: > > dear friends - I have a problem in ggplot2 which I hope you can help me > understand and solve. > > Running windows 7, R 3.2.1 > > grp <- gl(3,4,12) > trt <- gl(4,1,12) > num <- c(11,1,0,0,6,2,0,0,1,9,10,10) > MM <- data.frame(grp=grp,num=num,trt=trt) > levels(MM$grp)<- c("anest1","anest2","anest3") > levels(MM$trt)<- c("drug1","drug2","drug3","drug4") > MM > > ggplot(data=MM)+ geom_bar(mapping=aes(x=grp,y=num),fill=trt,stat="identity") + > theme(legend.position="top") + ylab("Number")+xlab("") > > How do Imake ggplot make a label? - I tried to annotate("text",1,5,"drug1") > returning > > mapping: x = x, xmin = xmin, y = y > geom_text: na.rm = FALSE > stat_identity: na.rm = FALSE > position_identity
I wasn't sure what that "return" was signifying. Trying to add that annotate call to a ggplot object threw an error: Error: geom_text requires the following missing aesthetics: label Fixing that produced n apparently unlabelled plot except I thin realized you were trying to annotate in the same color ( "black") as that section of bar. So this succeeds: ggplot(data=MM)+ geom_bar(mapping=aes(x=grp,y=num),fill=trt,stat="identity") + theme(legend.position="top") + ylab("Number")+ xlab("")+ annotate("text",1,5,label="drug1", col="orange") > > so that was not as I thought. How do I get the label directly I'm not a very accomplished ggplotter so there may be "direct" methods. I remember a "directlabels" package that does some cool stuff but I'm not well-versed in it eiehter.. > - or annotate if that is the only possibility? > > Best wishes > > Troels Ring > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.