Calculate the Jaccard Index between two vectors

Calculate the Jaccard Index between two vectors

jaccardIndex(x, y)

jaccardDistance(x, y)

Arguments

x

A vector

y

A vector

Value

The Jaccard Index, a number between 0 and 1

JaccardDistance is defined as 1-JaccardIndex.

Examples

myX <- 1:6
myY <- 4:9
jaccardIndex(myX, myY)
#> [1] 0.3333333
jaccardDistance(myX, myY)
#> [1] 0.6666667

myX <- LETTERS[1:5]
myY <- LETTERS[6:10]
jaccardIndex(myX, myY)
#> [1] 0
jaccardDistance(myX, myY)
#> [1] 1