Author: Jeroen Kromme

Christmas Tree with ggplot

rm(list = ls()) library(ggplot2) # create data x <- c(8,7,6,7,6,5,6,5,4,5,4,3,4,3,2,3,2,1,0.5,0.1) dat1 <- data.frame(x1 = 1:length(x), x2 = x) dat2 <- data.frame(x1 = 1:length(x), x2 = -x) dat1$xvar <- dat2$xvar <-...continue reading.