try this: m <- matrix(1:9, nrow=3, dimnames=list(LETTERS[1:3], letters[1:3])) l <- list(m1=m, m2=m*2, m3=m*3)
lapply(l, "[", 1, 1) # or sapply(l, "[", 1, 1) I hope it helps. Best, Dimitris On 11/17/2010 3:01 PM, soeren.vo...@eawag.ch wrote:
A list contains several matrices. Over all matrices (list elements) I'd like to access one matrix cell: m<- matrix(1:9, nrow=3, dimnames=list(LETTERS[1:3], letters[1:3])) l<- list(m1=m, m2=m*2, m3=m*3) l[[3]] # works l[[3]][1:2, ] # works l[[1:3]][1, 1] # does not work How can I slice all C-c combinations in the list? Sören
-- Dimitris Rizopoulos Assistant Professor Department of Biostatistics Erasmus University Medical Center Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands Tel: +31/(0)10/7043478 Fax: +31/(0)10/7043014 Web: http://www.erasmusmc.nl/biostatistiek/ ______________________________________________ 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.
