Hi Whitney, If I understood correctly, what you actually want is to construct a 2x2 table considering "smoking" and "retlevel". Perhaps something along the lines of
with(yourdata, table(retlevel, smoking)) could give you some insights. See ?table for more details. HTH, Jorge On Mon, Mar 7, 2011 at 10:08 PM, Whitney Kistler <> wrote: > I apologize in advance if this is posted all ready I have not been able to > find any information about it. I have this data frame and I want to sort > smoking by retlevel. > > Age Gender BMI Calories Fat Fiber Alc retlevel > Smoking > 1 64 Female 18.87834 1828.0 63.4 14.7 0.0 Normal > Non-Smoker > 2 25 Female 20.64102 1517.4 59.1 5.9 0.0 Normal Smoker > 3 50 Female 20.40345 1902.9 72.9 35.4 7.3 Normal Non-Smoker > 4 32 Female 35.97525 3328.4 163.3 20.0 4.1 High Smoker > 5 43 Female 25.58279 2501.6 121.1 19.5 0.0 High Smoker > 6 39 Male 21.99912 1951.4 109.1 4.7 0.0 Normal > Smoker > > To get an output like this. > > retlevel Normal High > Smoking 2 2 > Non-smoker 1 1 > > Thank you very much for your help. > > -- > Whitney Kistler M.S. > Ph.D. Student > Warnell School of Forestry and Natural Resources > Southeastern Cooperative Wildlife Disease Study > University of Georgia > Athens, GA 30602 > wkist...@uga.edu > cell:724-309-5298 > > [[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. > [[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.
