Hi all, Assume that I have the following 10 data points. x=c( 46, 125 , 36 ,193, 209, 78, 66, 242 , 297 , 45)
sort x and get the following y= (36 , 45 , 46, 66, 78, 125,193, 209, 242, 297) I want to group the sorted data point (y) into equal number of observation per group. In this case there will be three groups. The first two groups will have three observation and the third will have four observations group 1 = 34, 45, 46 group 2 = 66, 78, 125 group 3 = 193, 209, 242,297 Finally I want to calculate the group mean group 1 = 42 group 2 = 87 group 3 = 234 Can anyone help me out? In SAS I used to do it using proc rank. thanks in advance Val [[alternative HTML version deleted]] ______________________________________________ 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.