Cartesian Product Of Character Vectors
Hi David Perfect - if I specify sep="", it gives me exactly what I need. Cheers Rory Winston RBS Global Banking & Markets Office: +44 20 7085 4476 -----Original Message----- From: David Winsemius [mailto:dwinsemius at comcast.net] Sent: 05 December 2008 14:16 To: WINSTON, Rory, GBM Cc: r-help at r-project.org Subject: Re: [R] Cartesian Product Of Character Vectors Does this satisfy? levels(interaction(x,y)) [1] "aaa.1" "bbb.1" "ccc.1" "aaa.2" "bbb.2" "ccc.2" "aaa.3" "bbb.3" "ccc.3" -- David Winsemius
On Dec 5, 2008, at 8:12 AM, <Rory.WINSTON at rbs.com> <Rory.WINSTON at rbs.com> wrote:
Hi all (I'm sure this question has been asked before, but I cant find it). If I have two character vectors:
x <- c("aaa","bbb","ccc")
y <- c("1","2","3")
How can I get the cartesian product of the string values?
expand.grid(x,y)
Gives me a data frame with separate columns...however, I cant seem to
get *apply to paste the column values together.
Thanks
Rory
Rory Winston
RBS Global Banking & Markets
280 Bishopsgate, London, EC2M 4RB
Office: +44 20 7085 4476
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