Anna-Maria Tyrisevä wrote: > please, could somebody tell me how can I superpose a group of x,y-plot > points (using different symbols) that belong to a certain class of factor z? > Can't find a solution despite of hours of reading.
x <- rnorm(30) y <- rnorm(30) f <- factor(sample(LETTERS[1:5], 30, replace = TRUE)) plot(x, y, type = "n") # different plot character for different factor level points(x, y, pch = c(3, 9, 19, 20, 13)[as.numeric(f)]) # different colour for different factor level plot(x, y, type = "n") points(x, y, col = as.numeric(f), pch = 19) HTH, Tobias ______________________________________________ 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.
