Column Extraction from matrix
You could also use a 3d array instead of a list:
m <- matrix(1:400, ncol=100, byrow=TRUE) a <- array(m, dim=c(2, 2, 100), dimnames=list(row=c(1, 2),
col=c(1, 2), tbl=c(paste0("a", 1:100))))
a[,,1] # First table by index
col row 1 2 1 1 201 2 101 301
a[,,"a1"] # First table by name
col row 1 2 1 1 201 2 101 301
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r- project.org] On Behalf Of bantex Sent: Thursday, August 16, 2012 7:28 AM To: r-help at r-project.org Subject: Re: [R] Column Extraction from matrix Thanks guys for the help. I finally know what to do know :) -- View this message in context: http://r.789695.n4.nabble.com/Column- Extraction-from-matrix-tp4640465p4640482.html Sent from the R help mailing list archive at Nabble.com.
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