Hi: A small toy example:
fakedata <- data.frame(group = factor(rep(1:3, each = 10), labels = paste('Therapy', 1:3)), city = factor(rep(c('Amsterdam', 'Rotterdam'), each = 5)), pressure = rnorm(30)) with(fakedata, interaction.plot(group, city, pressure, type="b", col= c(1:2), leg.bty="o", leg.bg="skyblue", lwd=1, pch=c(18,24,22), xlab="Group", ylab="Pressure", main="Interaction Plot") ) HTH, Dennis On Mon, Oct 3, 2011 at 5:11 AM, flokke <ingaschw...@gmail.com> wrote: > Hi everyone, > I have the following problem: > > I have three variables, 'group', 'city' and 'pressure' > > There is an interaction effect between group and city and I'd like to show > this in an interaction plot: > > interaction.plot(group, city, pressure, type="b", > col= c(1:2), > leg.bty="o", leg.bg="blue", lwd=1, pch=c(18,24,22), > xlab="Group", > ylab="Pressure", > main="Interaction Plot") > > My problem is that I cant find a proper argument to pass factor names to the > variables 'group' and 'city'. > > In the interaction plot now the groups are referred to as '1', '2' and '3' > and the citys are referred to '1', 2'. Hoewever, Id like to pass > string character names to those ('Therapy 1, 'therapy 2 and therapy 3). I'd > also like to pass > string character names to the varibale 'city' ('Amsterdam', "Rotterdam', > etc.) > > I'm a quite new user (since two weeks), and normally I can easily find the > solution to my problems on > the internet, but however this time I'm frustrated because I cant find > solutions that are helping me. > > I'd be very glad if you could give me a hint or could show me how to deal > with this problem. > > Cheers, > Maria > > -- > View this message in context: > http://r.789695.n4.nabble.com/Assigning-factor-names-to-interaction-plot-tp3867311p3867311.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.