dimnames(x) dimnames(x) <- nlist
dimnames
and dimnames<-
are generic.
For an array
(and hence in particular, for a
matrix
), they retrieve or
set the dimnames
attribute (see attributes) of the object.
Both have methods for data frames. The dimnames of a data frame are
its row.names
attribute and its names
.
rownames
, colnames
;
array
, matrix
, data.frame
.## simple versions of rownames and colnames ## could be defined as follows rownames0 <- function(x) dimnames(x)[[1]] colnames0 <- function(x) dimnames(x)[[2]]