Overlap coefficient, also known as Szymkiewicz-Simpson coefficient

Overlap coefficient, also known as Szymkiewicz-Simpson coefficient

overlapCoefficient(x, y, checkUniqueNonNA = FALSE)

overlapDistance(x, y, checkUniqueNonNA = FALSE)

Arguments

x

A vector

y

A vector

checkUniqueNonNA

Logical, if TRUE, x and y are made unique and non-NA

Value

The overlap coefficient

See also

jaccardIndex

overlapCofficient calculates the overlap coefficient, and overlapDistance is defined by 1-overlapCoefficient.

Examples

myX <- 1:6
myY <- 4:9
overlapCoefficient(myX, myY)
#> [1] 0.5

myY2 <- 4:10
overlapCoefficient(myX, myY2)
#> [1] 0.5
## compare the result with Jaccard Index
jaccardIndex(myX, myY2)
#> [1] 0.3

## overlapDistance
overlapDistance(myX, myY2)
#> [1] 0.5