On 2011-05-11 02:11, E Hofstadler wrote:
Hello all,This question concerns the function Dotplot from the Hmisc package. My aim is to compare values between groups in each panel of the Dotplot, with the values of different groups clearly distinguishable by different symbols. All lines and symbols should be coloured in black. Before adding the panel function to the Dotplot, the groups behaved as desired and were marked by different symbols, but the error bands were blue instead of black. After adding the panel function and changing the trellis colour settings, the error bars are now black, but now the groups are suddenly marked by the same rather than different symbols. I've tried several ways to change the group symbols but to no avail. ## set CI lines to black t1 = trellis.par.get("plot.line") t1$col<- "black" trellis.par.set("plot.line",t1) ## load example data require(lattice) data(barley) ## example plot (problem: groups marked by the same symbol) require(Hmisc) Dotplot(site~Cbind(yield, yield+5, yield-5)|variety, groups=year, data=barley, pch=c(1,2), col="black", panel=function(x,y){ panel.Dotplot(x,y,col="black")}) Key() What am I doing wrong?
It seems to me that 'plot.line' is the wrong lattice parameter to set. Try this: Dotplot(site~Cbind(yield, yield+5, yield-5)|variety, groups=year, par.settings=list(superpose.line=list(col="black")), data=barley, pch=c(1,2), col="black") No need to specify the panel function. (To see what's wrong with the panel function, add '...' to the arguments.) Peter Ehlers
Many thanks in advance. Esther ______________________________________________ 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.
______________________________________________ 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.
