Hi Nat, can I suggest, without offending, that you purchase and read Peter Dalgaard's "Introductory Statistics with R" or Michael Crawley's "Statistics: An Introduction using R" or Venables and Ripley's "Modern Applied Statistics with S" or Maindonald and Braun's "Data Analysis and Graphics Using R: An Example-based Approach",
or download and read An Introduction to R http://cran.r-project.org/doc/manuals/R-intro.pdf or one of the numerous contributed documents at http://cran.r-project.org/other-docs.html ? I hope that this helps, Andrew. On Wed, Apr 25, 2007 at 03:32:11PM -0600, Natalie O'Toole wrote: > Hi, > > Does anyone know if: with R can you take a set of numbers and aggregate > them like you can in SPSS? For example, could you calculate the percentage > of people who smoke based on a dataset like the following: > > smoke = 1 > non-smoke = 2 > > variable > 1 > 1 > 1 > 2 > 2 > 1 > 1 > 1 > 2 > 2 > 2 > 2 > 2 > 2 > > > When aggregated, SPSS can tell you what percentage of persons are smokers > based on the frequency of 1's and 2's. Can R statistical package do a > similar thing? > > Thanks, > > Nat > > ______________________________________________ > R-help@stat.math.ethz.ch 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. -- Andrew Robinson Department of Mathematics and Statistics Tel: +61-3-8344-9763 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 http://www.ms.unimelb.edu.au/~andrewpr http://blogs.mbs.edu/fishing-in-the-bay/ ______________________________________________ R-help@stat.math.ethz.ch 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.