Hi Read what barplot does and look to your plot.
If you want each row to be plotted as stacked bar with names uder each bar taken from peaople variable then you need to transpose your matrix - barplot takes columns plot without names - you do not want them really plotted add names under each bar - that is what names.arg is for barplot(t(data.matrix(fakedata[,-1])), names.arg=fakedata$people) Regards Petr r-help-boun...@r-project.org napsal dne 03.03.2009 19:00:12: > What is the best way to produce a barplot from my data? I would like > the barplot to show each person with the values stacked > val1+val2+val3, so there is one bar for each person When I use > barplot(data.matrix(realdata)), it shows one bar for each value > instead. > > To post here, I created an artificical data set, but it works fine. > > fakedata <- as.data.frame(list(LETTERS[1:3])) > colnames(fakedata) <- 'people' > fakedata['val1'] = abs(rnorm(3)) > fakedata['val2'] = abs(rnorm(3)) > fakedata['val3'] = abs(rnorm(3)) > barplot(data.matrix(fakedata)) > > At a glance there is no substantial difference is between my fake data > and my real data. > > > realdata > person val1 val2 val3 > 1 A 221 71 175 > 2 B 222 85 147 > > mydata > people val1 val2 val3 > 1 A 0.75526748 0.445386 0.09186245 > 2 B 0.06107566 2.008815 2.50269410 > 3 C 0.47171611 0.592037 0.57612168 > > However > > > data.matrix(realdata) > person val1 val2 val3 > 1 NA 221 71 175 > 2 NA 222 85 147 > Warning messages: > 1: NAs introduced by coercion > 2: NAs introduced by coercion > > So then I converted 'person' from a list to factors, which removed the > coercision error, but barplot() still shows each bar as value instead > of a person. > > My serialized() data subset is here (look at bottom half where there > are no line numbers) > http://pastebin.com/m6d1e1d79 > > > Thanks in advance, > Andrew > > ______________________________________________ > 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.
