Description Usage Arguments Details Author(s) See Also Examples
Given two arrays a
and b
with
length(dim(a))==length(dim(b))
, return a matrix with
dimensions pmax(dim(a),dim(b))
where “overlap”
elements are a+b
, and the other elements are either 0, a, or
b according to location. See details section.
1 |
... |
numeric or complex arrays |
The function takes any number of arguments (the binary operation is associative).
The operation of aplus()
is understandable by examining the
following pseudocode:
outa <- array(0,pmax(a,b))
outb <- array(0,pmax(a,b))
outa[1:dim(a)] <- a
outb[1:dim(a)] <- b
return(outa+outb)
See how outa
and outb
are the correct size and the
appropriate elements of each are populated with a
and b
respectively. Then the sum is returned.
Robin K. S. Hankin
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