How to find which postions in a vector has negative values and output them?

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i have a vector and need to find the postions which has negative values

Accepted Answer

Birdman
Birdman on 17 Feb 2018
Edited: Birdman on 17 Feb 2018
Say your vector is A:
idx=find(A<0)
ANeg=A(idx)

More Answers (1)

Stephen23
Stephen23 on 17 Feb 2018
find is not required, logical indexing is simpler and more efficient:
B = A(A<0)

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