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geotheory/jaccard_similarity.R

Last active March 23, 2019 02:27
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jaccard_similarity.R
jaccard_similarity = function(x, y){
x = unique(x)
y = unique(y)
if(length(x) + length(y) == 0) return(1)
xy = length(intersect(x, y))
xy / (length(x) + length(y) - xy)
}
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