R: Jaccard similarity between logical vectors

clujaccard {fpc} | R Documentation

## Jaccard similarity between logical vectors

### Description

Jaccard similarity between logical or 0-1 vectors: `sum(c1 & c2)/sum(c1 | c2)`.

### Usage

    clujaccard(c1,c2,zerobyzero=NA)

### Arguments

`c1` | logical or 0-1-vector.
`c2` | logical or 0-1-vector (same length).
`zerobyzero` | result if `sum(c1 | c2)=0`.

### Value

Numeric between 0 and 1.

### Author(s)

Christian Hennig c.hennig@ucl.ac.uk http://www.homepages.ucl.ac.uk/~ucakche/

### Examples

      c1 <- rep(TRUE,10)
      c2 <- c(FALSE,rep(TRUE,9))
      clujaccard(c1,c2)

[Package fpc version 2.1-10 Index]