Extract union components of a vector (original) (raw)
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Scilab help >> Elementary Functions > Set operations > union
extract union components of a vector
Calling Sequence
[v [,ka, kb] ] = union(a,b) [v [,ka, kb] ] = union(a,b,orient)
Arguments
a
vector or matrix of numbers or strings
b
vector of real numbers or strings
orient
flag with possible values : 1 or "r", 2 or "c".
v
row vector or matrix of numbers or strings
ka
row vector of integers
kb
row vector of integers
Description
union(a,b) returns a sorted row vector which retains the unique entries of [a(:);b(:)].
union(a,b,"r") orunion(a,b,1)returns the matrix formed by the union of the unique rows of a and b sorted in lexicographic ascending order. In this case matrices a and b must have the same number of columns.
union(a,b,"c") orunion(a,b,2)returns the matrix formed by the union of the unique columns of a and b sorted in lexicographic ascending order. In this case matricesa and b must have the same number of rows.
[v,ka,kb]=union(a,b) also returns index vectorska and kb such thatv is a sorted combination of the entriesa(ka) and b(kb).