intersect (MATLAB Functions)

Find set intersection of two vectors

Syntax

c = intersect(A, B)
c = intersect(A, B, 'rows')
[c, ia, ib] = intersect(...)

Description

c = intersect(A, B) returns the values common to both A and B. The resulting vector is sorted in ascending order. In set theoretic terms, this is
A B. A and B can be cell arrays of strings.

c = intersect(A, B, 'rows') when A and B are matrices with the same number of columns returns the rows common to both A and B.

[c, ia, ib] = intersect(a, b) also returns column index vectors ia and ib such that c = a(ia) and c = b(ib) (or c = a(ia,:) and c = b(ib,:)).

Examples

A = [1 2 3 6]; B = [1 2 3 4 6 10 20];    
[c, ia, ib] = intersect(A, B);
disp([c; ia; ib]) 
     1     2     3     6
     1     2     3     4
     1     2     3     5

See Also

ismember, issorted, setdiff, setxor, union, unique

interpstreamspeed intmax