Getting the position of a value in a vector

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Adam Palmer
Adam Palmer 2014-8-5
评论： Star Strider 2014-8-5
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.

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Star Strider
Star Strider 2014-8-5
If you want the index of the first value where BAC < 0.08:
BACx = find(BAC < 0.08, 1, 'first')

更多回答（1 个）

Ben11
Ben11 2014-8-5
编辑：Ben11 2014-8-5
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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