MATLAB: How to find the common values in two arrays

common

Suppose I have two vectors
 a= 1 2 3 4
 b= 4 5 6 7 9
How do I find which value is common to both
in above case it is 4

Best Answer

You need the intersect command
 doc intersect
in your case
 [val,pos]=intersect(a,b)  % gives common val and its position in 'a'
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