+.count
From untb v1.7-2
by Robin K S Hankin
Add two count objects
Adds two count objects
- Keywords
- math
Usage
"+"(a,b)
"+"(a,b)
Arguments
- a,b
- objects of class
count
Details
Consider count objects a
and b
. Then a+b
is a
count object that records the number of each species in a
and
b
combined. It is as though the organisms in the surveys were
pooled.
Census objects are coerced to count objects, added, then the result coerced to a count object.
The operation is commutative and associative.
Examples
a <- count(c(dogs=4,pigs=0,slugs=5))
b <- count(c(slugs=4,hogs=1,frogs=19))
a+b
Community examples
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