Jaccard similarity between logical vectors

Description

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

Usage

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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

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

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