| drop {base} | R Documentation |
drop(x)
If x is an object with a dim attribute
(e.g. a matrix or array), then drop returns
an object like x, but with any extents of length
one removed. Any accompanying dimnames attribute
is adjusted and returned with x.
Array subsetting ([) performs this reduction unless used
with drop = FALSE, but sometimes it is useful to invoke
drop directly.
drop1 which is used for dropping terms in models.
dim(drop(array(1:12, dim=c(1,3,1,1,2,1,2))))# = 3 2 2 drop(1:3 %*% 2:4)# scalar product