Getting the position of a value in a vector

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Hey Matlab community, I have another one for you all. I have a vector of values BAC_F that corresponds with time, and I want the first position of BAC(BAC_F<.08) , but I can't quite figure it out. Any help and suggestions are appreciated.

Accepted Answer

Star Strider
Star Strider on 5 Aug 2014
If you want the index of the first value where BAC < 0.08:
BACx = find(BAC < 0.08, 1, 'first')

More Answers (1)

Ben11
Ben11 on 5 Aug 2014
Edited: Ben11 on 5 Aug 2014
YourVector = BAC(BAC_F<0.8)
Then
FirstValue = YourVector(1)
Is that what you meant?
If not it might simply be
YourVector = BAC_F < 0.8
Do you want to sort the array? Then you can use
sort(YourVector)
and then get the first element.

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