Intersection(A,B) not working for date

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Meh
Meh 2015-6-2
编辑： Guillaume 2015-6-2
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?

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采纳的回答

Ingrid
Ingrid 2015-6-2
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))
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Guillaume
Guillaume 2015-6-2
编辑：Guillaume 2015-6-2
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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更多回答（1 个）

Star Strider
Star Strider 2015-6-2
Since date vectors are row vectors, use the 'rows' option with intersect:
[C,ia, ib]=intersect(A,B,'rows');

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