Perform set operations on Hits objects.
setdiff(x, y), and
setequal(x, y) work on Hits objects
only if the objects are compatible Hits objects, that is, if they
have the same subject and query lengths. These operations return respectively
the union, intersection, (asymmetric!) difference, and equality of the
sets of hits in
union returns a Hits object obtained by appending to
the hits in
y that are not already in
intersect returns a Hits object obtained by keeping only
the hits in
x that are also in
setdiff returns a Hits object obtained by dropping from
x the hits that are in
y contain the
same sets of hits and
setdiff propagate the names and
metadata columns of their first argument (
Herv<c3><a9> Pag<c3><a8>s and Michael Lawrence
Hits-comparison for comparing and ordering hits.
in the BiocGenerics package for general information about
these generic functions.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
x <- Hits(c(2, 4, 4, 4, 5, 5), c(3, 1, 3, 2, 3, 2), 6, 3, score=11:16) x y <- Hits(c(1, 3, 4, 4, 5, 5, 5), c(3, 3, 2, 1, 2, 1, 3), 6, 3, score=21:27) y union(x, y) union(y, x) # same hits as in union(x, y), but in different order intersect(x, y) intersect(y, x) # same hits as in intersect(x, y), but in # different order setdiff(x, y) setdiff(y, x) setequal(x, y)
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