Hi, Try this:
list1<-list(ABC=c(2,5),XYZ=c(3,4,4,2),PQR=c(4,5,3)) > lapply(list1,function(x) length(x)) $ABC [1] 2 $XYZ [1] 4 $PQR [1] 3 list2<-lapply(list1,function(x) length(x)) dat2<-data.frame(list2) dat2 ABC XYZ PQR 1 2 4 3 A.K. ----- Original Message ----- From: Rantony <antony.akk...@ge.com> To: r-help@r-project.org Cc: Sent: Tuesday, July 10, 2012 8:31 AM Subject: [R] Count of elements in coulmns of a matrix Could you please tell me what is the function or method to get count of elements in all the columns in a matrix ? for eg :- ABC XYZ PQR ------ ----- ------ 2 3 4 4 5 5 4 3 2 Result will be like ABC XYZ PQR ------ ----- ------ 2 4 3 Could you please help me ? -- View this message in context: http://r.789695.n4.nabble.com/Count-of-elements-in-coulmns-of-a-matrix-tp4635979.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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. ______________________________________________ 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.