pairwise_overlap: Pairwise Overlap Coefficient

In ttrodrigz/onezero: Analysis tools for binary (0/1) data

Pairwise Overlap Coefficient

Description

Calculates the pairwise overlap (Szymkiewicz–Simpson) coefficient. Related to the Jaccard index. Defined as the size of the intersection divided by the smaller of the size of the two sets.

Usage

pairwise_overlap(data, cols, case_weights)

Arguments

data	A data frame.
cols	Columns to analyze.
case_weights	An optional column of case weights.

Details

• Metric: Similarity

• Symmetrical: Yes

• Upper Limit: 1

• Lower Limit: 0

		B
		1	0
A	1	a	b
	0	c	d

Overlap = a/(min(a+b, a+c))

Value

A matrix.

Examples

res <- pairwise_overlap(
    data = FoodSample,
    cols = Bisque:Turkey
)

print(res)

tidy(res)

ttrodrigz/onezero documentation built on May 9, 2023, 2:59 p.m.