[R] Make a table

Dear useR, I have a dataset like this below, prevRND.dat - read.table(C:\\workdir\\prevRND.txt, + header=FALSE, # No header. + col.names = c(X,Y,Z), + sep = ,) prevRND.dat X YZ 1 A A 0.950933 2 A B

Re: [R] Make a table

[R] Make a table 12/22/2004 07:26 AM

RE: [R] Make a table

-- -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Muhammad Subianto Sent: Wednesday, December 22, 2004 2:26 PM To: [EMAIL PROTECTED] Subject: [R] Make a table Dear useR, I have a dataset like this below, prevRND.dat - read.table(C

Re: [R] Make a table

On Wed, 2004-12-22 at 14:26 +0100, Muhammad Subianto wrote: Dear useR, I have a dataset like this below, prevRND.dat - read.table(C:\\workdir\\prevRND.txt, + header=FALSE, # No header. + col.names = c(X,Y,Z), +

Re: [R] Make a table

Thanks to all of you. That's what I want. Best wishes, Muhammad Subianto Try tapply(prevRND.dat$Z, list(X=prevRND.dat$X, Y=prevRND.dat$Y), mean) __ Andy Jaworskitry: try: tapply( Z, list( X, Y ), mean ) -- Bendix Carstensen How about: xtabs(Z ~