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.