I have the following data: x <- as.factor(c(1,1,1,2,2,2,3,3,3)) y <- as.factor(c(10,10,10,20,20,20,30,30,30)) z <- c(100,100,NA,200,200,200,300,300,300)
I could create the cross tab of x and y with Sum of z as its elements using the xtabs function as follows: # X Vs. Y with Sum Z xtabs(z ~ x + y) y x 10 20 30 1 200 0 0 2 0 600 0 3 0 0 900 How do I replace the sum with average and count so that I can get the following outputs?? # X Vs. Y with Average of Z y x 10 20 30 1 100 0 0 2 0 200 0 3 0 0 300 # X Vs. Y with Count Z y x 10 20 30 1 2 0 0 2 0 3 0 3 0 0 3 Would appreciate any help on these? Thank you. Ravi -- View this message in context: http://r.789695.n4.nabble.com/Crosstab-with-Average-and-Count-tp4637180.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
