acorn: Return a corner of an array object (like head)
Description
Return a small corner of an array object, like head() or tail() but
taking only a few slices on each dimension.
Usage
acorn(x, n=6, m=5, r=1, ...)
Arguments
x
An array (including a matrix or a data frame)
n,m,r
Numbers of items on each dimension. A negative number
is interpreted as this many items at the end (like tail).
...
Further arguments specifying numbers of slices to return on
each dimension.
Value
An object like x with fewer elements on each dimension.
Details
Like head() for multidimensional arrays, with two differences:
(1) returns just a few items on each dimension, and (2) negative
numbers are treated like tail().