Intersection(A,B) not working for date

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Meh
Meh on 2 Jun 2015
Edited: Guillaume on 2 Jun 2015
I have A and B date vectors. I want to extract the common dates from both. I used:
[C,ia, ib]=intersection(A,B)
But it is giving me extremely few results than expected. Any solution?

Accepted Answer

Ingrid
Ingrid on 2 Jun 2015
you should use a round before using using intersection to avoid floats not being equal to each other. If the dates are distinguishably by day (i.e. no hours given) you could use this
[C,ia, ib]=intersection(round(A),round(B))
  1 Comment
Guillaume
Guillaume on 2 Jun 2015
Edited: Guillaume on 2 Jun 2015
This answer would be more or less correct if the OP was using date numbers. But for accuracy down to the second, I would actually multiply the date numbers by 24x3600 before rounding.
As the OP is using date vectors though, Star's answer is the correct one.

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More Answers (1)

Star Strider
Star Strider on 2 Jun 2015
Since date vectors are row vectors, use the 'rows' option with intersect:
[C,ia, ib]=intersect(A,B,'rows');

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