How to find the common values in two arrays

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Jisha
Jisha 2012-5-28
评论： Dyuman Joshi 2024-5-8
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

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Thomas
Thomas 2012-5-28
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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