[R] Base function for flipping matrices

Hadley Wickham hadley at rice.edu
Sat Dec 31 16:08:14 CET 2011

Hi all,

Are there base functions that do the equivalent of this?

fliptb <- function(x) x[nrow(x):1, ]
fliplr <- function(x) x[, nrow(x):1]

Obviously not hard to implement (although it needs some more checks),
just wondering if it had already been implemented.


Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University

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