I have a dataset like the following: subject class value 123 1 10 124 1 12 125 1 12 223 2 23 224 2 18 225 2 19 323 3 21 324 3 10 325 3 19 326 3 20 how to calculate the summary value for each factor? thanks karena -- View this message in context: http://r.789695.n4.nabble.com/how-to-calculate-summary-statistics-for-each-factor-tp2279777p2279777.html Sent from the R help mailing list archive at Nabble.com.
Erik Iverson
2010-Jul-06 17:29 UTC
[R] how to calculate summary statistics for each factor
?tapply is one way. karena wrote:> I have a dataset like the following: > > subject class value > 123 1 10 > 124 1 12 > 125 1 12 > 223 2 23 > 224 2 18 > 225 2 19 > 323 3 21 > 324 3 10 > 325 3 19 > 326 3 20 > > how to calculate the summary value for each factor? > thanks > > karena
Andrew Miles
2010-Jul-06 18:07 UTC
[R] how to calculate summary statistics for each factor
You could try Summarize in the NCStats package, or aggregate in the epicalc package. Andrew Miles Department of Sociology Duke University On Jul 6, 2010, at 11:53 AM, karena wrote:> > I have a dataset like the following: > > subject class value > 123 1 10 > 124 1 12 > 125 1 12 > 223 2 23 > 224 2 18 > 225 2 19 > 323 3 21 > 324 3 10 > 325 3 19 > 326 3 20 > > how to calculate the summary value for each factor? > thanks > > karena > -- > View this message in context: http://r.789695.n4.nabble.com/how-to-calculate-summary-statistics-for-each-factor-tp2279777p2279777.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at 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.
yeah, both work. Thank you, guys... -- View this message in context: http://r.789695.n4.nabble.com/how-to-calculate-summary-statistics-for-each-factor-tp2279777p2281532.html Sent from the R help mailing list archive at Nabble.com.