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Matching Two Numeric Vectors

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Patrick Rungrugeecharoen
评论： Star Strider 2019-6-8
I have for instance a vector called A:
And another vector called B:
And another vector called C:
I'd like another vector D which is:
  • same length as vector B and C; and
  • will show a 1 if:
  • there is a match between vector A and vector B (else a 0); and
  • the corresponding matched value in vector C is less than or equal to 30.
For instance:
B(1) = 149.1408, A(1) = 149.1408, C(1) = 5 <= 30 so D(1) = 1 etc etc.
Would also like a vector E (size of A) counting occurrences from vector D.

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回答（1 个）

Star Strider
Star Strider 2019-6-8
The ismembertol (link) function is likely appropriate. (Another option is the ismember (link) function, althoughit is likely not appropriate here.)
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Patrick Rungrugeecharoen
Patrick Rungrugeecharoen 2019-6-8
Yes, hence the little pickle I'm in. Not too sure how to resolve this issue. I figured two for loops would work but it stops at the shorter of the two.
Star Strider
Star Strider 2019-6-8
You actually don’t need any loops. You can do everything with the logical vectors.
You have to choose how to deal with the vectors not having the same numbers of elements. I can’t resolve that.

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