search for: 20subplots

...cets but when I tried to add two series in one facet then only one facet got updated while other didn't. The data watersurf1.csv can be downloaded from https://www.dropbox.com/s/ainioj2nn47sis4/watersurf1.csv The output I got can be found on https://www.dropbox.com/s/a6d13bkjiu7uy2q/facet%202%20subplots.png The code I used is as follows: watersurf <- read.table("watersurf1.csv",sep=",",header=TRUE) watersurf[1:100,] ggplot(data=watersurf,aes(x=time,y=data))+geom_line()+facet_wrap(~id) watersurf$coupleid <- factor(rep(unlist(by(watersurf$id,watersurf$group,...