Dear all I am quite confused by rpart plotting. Here is example. set.seed(1) y <- (c(rnorm(10), rnorm(10)+2, rnorm(10)+5)) x <- c(rep(c(1,2,5), c(10,10,10)) fit <- rpart(x~y) plot(fit) text(fit) Text on first split says x < 3.5 and on the second split x < 1.5 what I understand: If x < 3.5 so y is lower and y values go to the left split. OK. But, sometimes there is whatever >= nnn and it seems to me that if this condition is true response variable follow to right split. try: y1<-(c(rnorm(10)+5,rnorm(10)+2, rnorm(10))) fit<-rpart(y1~x) plot(fit) text(fit) Well, I am not sure I express myself clearly. Am I correct that when there is < sign I shall follow left node but when there is >= sign I shall follow the right one? Best regards Petr Pikal Petr Pikal petr.pikal at precheza.cz
rpart plot question
1 message · PIKAL Petr