search for: plamondon

Dear R-users, I am trying to get the plyr syntax right, without much success. Given: d<- data.frame(cbind(x=1,y=seq(20100801,20100830,1))) names(d)<-c("first", "daterep") d2<-d # I can convert the daterep column in place the classic way: d$daterep<-as.Date(strptime(d$daterep, format="%Y%m%d")) # How to do it the plyr way? ddply(d2,

Dear R-users, I am unsuccessful in trying to add an horizontal line to all graphs in the example below: library(lattice) val<-runif(15) x<-rep(seq(1:5),3) type<-c(rep("a",5), rep("b",5), rep("c",5)) xyplot(val ~ x | type, panel.abline(h=.6)) Any hints are appreciated. Best regards, ---Jean -- View this message in context: