You need to create a factor that indicates which group the values in 'z' belong to. The easiest way to do that based on your situation is to use the 'cut' function to construct the factor, and then call 'table' using the result created by 'cut'. See ?cut and ?factor
-----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Inchallah Yarab Sent: Monday, August 24, 2009 10:59 AM To: r-help@r-project.org Subject: [R] table function hi, i want to use the function table to build a table not of frequence (number of time the vareable is repeated in a list or a data frame!!) but in function of classes I don t find a clear explnation in examples of ?table !!! example x y z 1 0 100 5 1 1500 6 1 1200 2 2 500 1 1 3500 5 2 2000 8 5 4500 i want to do a table summerizing the number of variable where z is in [0-1000],],[1000-3000], [> 3000] thank you very much for your help [[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.
