countIntersect | R Documentation |
Given n
sets, countIntersect
computes the number of elements
being shared by the individual n*(n-1)/2
pairs
of sets.
countIntersect(..., logical = FALSE)
... |
several numeric or character vectors to intersect; alternatively, a data frame or matrix can be supplied, whose columns will be treated as individual sets |
logical |
should |
A matrix of size n*n
. If logical==FALSE
, on the diagonal,
there are numbers of elements in each set, and at position i,j
there is the number of elements in set j
shared with set i
.
If logical==TRUE
, on the diagonal, there are numbers of TRUE
s
in each set, and at position i,j
there is the number of TRUE
s
shared by sets i
and j
.
Tomas Sieger
countIntersect(1:2,1:3)
countIntersect(c('a','b'),c('a','c'),c('b','c'))
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