Hi Stephen, Try
tapply(DATA$mgl,DATA$RM,summary) # DATA is a data.frame I hope this helps. Jorge On 2/12/08, stephen sefick <[EMAIL PROTECTED]> wrote: > > below is my data frame. I would like to compute summary statistics > for mgl for each river mile (mean, median, mode). My apologies in > advance- I would like to get something like the SAS print out of PROC > Univariate. I have performed an ANOVA and a tukey LSD and I would > just like the summary statistics. > thanks > > stephen > > RM mgl > 1 215 0.9285714 > 2 215 0.7352941 > 3 215 1.6455696 > 4 215 0.6000000 > 5 sc 1.8333333 > 6 sc 0.8333333 > 7 sc 2.5438596 > 8 sc 0.2500000 > 9 202 NA > 10 202 0.5500000 > 11 202 0.8148148 > 12 202 1.6666667 > 13 198 0.5038760 > 14 198 0.3823529 > 15 198 0.7600000 > 16 198 0.4800000 > 17 hc 3.1818182 > 18 hc 3.7254902 > 19 hc 4.3750000 > 20 hc 2.6415094 > 21 190 0.3500000 > 22 190 0.4400000 > 23 190 0.6500000 > 24 190 0.5000000 > 25 bc 9.0000000 > 26 bc 5.0000000 > 27 bc 4.0000000 > 28 bc 3.2000000 > 29 185 0.7386364 > 30 185 0.5000000 > 31 185 1.1538462 > 32 185 0.6000000 > 33 179 1.8181818 > 34 179 1.1980000 > 35 179 2.5000000 > 36 179 2.0000000 > 37 148 2.0833333 > 38 148 2.3333333 > 39 148 3.1000000 > 40 148 2.2142857 > 41 119 2.4444444 > 42 119 2.3275862 > 43 119 4.7142857 > 44 119 1.7692308 > 45 61 2.8888889 > 46 61 3.2500000 > 47 61 4.7500000 > 48 61 2.6337449 > > > -- > Let's not spend our time and resources thinking about things that are > so little or so large that all they really do for us is puff us up and > make us feel like gods. We are mammals, and have not exhausted the > annoying little problems of being mammals. > > -K. Mullis > > ______________________________________________ > 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.
