dear sir, my data larger than this example but is of the following format:
y x Age 30 0.0323 O 24 0.0389 Y 158 0.058 Y 120 0.0581 O 100 0.0471 Y 102 0.0615 Y 160 0.0546 O i ma making a scatter plot of y~x and want to specify different coloured and filled shaped for the points according the the third categorical variable A. the code i have managed is : plot(y~x,pch=as.numeric(factor(Age))) and i can chage the col seperatley with plot(y~xt,pch=as.numeric(factor(maleage))) and have added a legend with: legend(locator(1), as.character(levels(factor(maleage))), pch=1:length(levels(factor(maleage)))) However the problem i have is that using this code R selects the shapes or colours for me? could you help as to how i specify a specific shape for each of the levels in the Age variable? ______________________________________________ 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.
