aplus: Generalized array addition

Description Usage Arguments Details Author(s) See Also Examples

Description

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.

Usage

1

Arguments

...

numeric or complex arrays

Details

The function takes any number of arguments (the binary operation is associative).

The operation of aplus() is understandable by examining the following pseudocode:

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.

Author(s)

Robin K. S. Hankin

See Also

apad

Examples

1
2
3
4
5
aplus(rbind(1:9),cbind(1:9))

a <- matrix(1:8,2,4)
b <- matrix(1:10,5,2)
aplus(a*100,b,b)

magic documentation built on May 2, 2019, 12:21 p.m.