Finding the first 1 in indicator variable

2011 5 25
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Hi all.
If i have an indicator variable which a bunch of 1's. How do i most efficiently find the position of the first 1?
Thx

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Andrei Bobrov
Andrei Bobrov 2011-5-25

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out = find(A,1,'first')
A - your indicator variable (vector)
[outI,outJ] = find(A,1,'first')
here A - your indicator variable (matrix)

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