[R] superimposing histograms con't

From: Bill Shipley <bill.shipley_at_usherbrooke.ca>
Date: Thu 29 Jun 2006 - 05:53:35 EST

Earlier, I posted the following question: I want to superimpose histograms from three populations onto the same graph, changing the shading of the bars for each population. After consulting the help files and the archives I cannot find out how to do this (seemly) simple graph. To be clear, I want
- a single x axis (from -3 to 18)

Gabor Grothendieck [ggrothendieck@gmail.com] pointed to some code to to this but I have found another way that works even easier.  

hist(x[sel1],xlim=c(a,b),ylim=c(A,B)) - this plots the histogram for the first group (indexed by sel1) but with an x axis and a y axis that spans the entire range.  

par(new=T) - to keep on the same graph  

hist(x[sel2],main=Null,xlab=NULL,ylab=NULL,axes=F) -superimposes the second histogram  

par(new=T) - to keep on the same graph  

hist(x[sel3],main=Null,xlab=NULL,ylab=NULL,axes=F) -superimposes the third histogram    

Bill Shipley

North American Editor, Annals of Botany

Editor, "Population and Community Biology" series, Springer Publishing

Département de biologie, Université de Sherbrooke,

Sherbrooke (Québec) J1K 2R1 CANADA



        [[alternative HTML version deleted]]

R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jun 29 05:59:02 2006

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.1.8, at Fri 30 Jun 2006 - 02:12:36 EST.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.