Hi Ista, David, your answers indeed helped me to solve the problem! So thanks to you and have a good day!
Stephan --- On Wed, 2/23/11, David Winsemius <dwinsem...@comcast.net> wrote: > From: David Winsemius <dwinsem...@comcast.net> > Subject: Re: [R] Plot Stepped Line chart with multiple lines > To: "Ista Zahn" <iz...@psych.rochester.edu> > Cc: "Techni X" <fiboswo...@yahoo.com>, r-help@r-project.org > Date: Wednesday, February 23, 2011, 2:08 AM > > On Feb 22, 2011, at 7:10 PM, Ista Zahn wrote: > > > Hi, > > This is R, so there are bound to be severay ways to do > it. This would > > be my first choice: > > > > library(ggplot2) > > ggplot(d, aes(x=V2, y=V3, color=V1)) + geom_step() > > > > Best, > > Ista > > > > On Tue, Feb 22, 2011 at 3:08 PM, Techni X <fiboswo...@yahoo.com> > wrote: > >> Hi all, > >> > >> I have a question, that might be a „rookie“ > question – but I’m trying now for days and cannot get my > head around. The general question is: > >> How can I plot a stepped line chart with multiple > lines from a subset of a dataframe? > >> > >> An example: > >> d <- matrix(rep(0,24), ncol=3, nrow=8) > >> d <- as.data.frame(d) > >> d$V1 <- c("A","A","A","B","B","C","C","C") > >> d$V2 <- c(5,10,15,10,15,5,13,15) > >> d$V3 <- c(10,20,30,7.5,10,3,7,10) > > Probably the second to these: > > require(lattice) > xyplot(V3 ~ V2|V1, data=d, type="s") #separate > panels > xyplot(V3 ~ V2, group=V1, data=d, type="s") # all on > one panel > > >> which gives me the following dataframe: > >> V1 V2 V3 > >> 1 A 5 10.0 > >> 2 A 10 20.0 > >> 3 A 15 30.0 > >> 4 B 10 7.5 > >> 5 B 15 10.0 > >> 6 C 5 3.0 > >> 7 C 13 7.0 > >> 8 C 15 10.0 > >> > >> I now want to plot three stepped lines into a x-y > chart, the lines representing A, B, C. The x-axis is given > by V2, the y-axis by V3, thus each line will be > “ascending” > >> It must be something with SUBSET or so, but I do > not find an easy way. > >> > >> Can anybody help me? > >> > >> Thanks > >> Stephan > > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ 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.