Hi,I'm not sure what you're looking for because it looks to me that you have the answer already...
Is this what you want:
subset(df, x %in% c('a','b'))
?Ivan Le 4/6/2011 10:45, SNV Krishna a écrit :
Hi All, Is it possible to use the subset() function to select data based on multiple values of a single variable from a data frame. My actual data set is much bigger and would like to illustrate with following datasetdf = data.frame(x = c('a','b','c','d','e','f','g','h','a','a','b','b'), y= 1:12) I would like to select all rows where x = a or b.subset(df, x == c('a','b')) # this command did not return all rows where xis equal to a or b x y 1 a 1 2 b 2 9 a 9 12 b 12df[df$x %in% c('a','b'),] # subsetting using subscripts returned all rowsx y 1 a 1 2 b 2 9 a 9 10 a 10 11 b 11 12 b 12 I know there might be a problem with subset syntax that I have used, but could'nt figure out what it is. Any insights from members will be highly appreciated and thanks for the same. Regards, S.N.V. Krishna [[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.
-- Ivan CALANDRA PhD Student University of Hamburg Biozentrum Grindel und Zoologisches Museum Abt. Säugetiere Martin-Luther-King-Platz 3 D-20146 Hamburg, GERMANY +49(0)40 42838 6231 ivan.calan...@uni-hamburg.de ********** http://www.for771.uni-bonn.de http://webapp5.rrz.uni-hamburg.de/mammals/eng/1525_8_1.php ______________________________________________ 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.
