How do I create a function that interweaves two vectors of 1xN dimensions?

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How do I create a function that interweaves two vectors of 1xN dimensions?

Accepted Answer

Evgeny Pr
Evgeny Pr on 24 Jan 2013
As one of the ideas:
v1 = [1, 2, 3, 4]
v2 = [5, 6, 7, 8, 9, 10]
lv1 = length(v1)
lv2 = length(v2)
v = zeros(1,max(lv1,lv2)*2)
v(1:2:lv1*2) = v1
v(2:2:lv2*2) = v2
  1 Comment
Walter Roberson
Walter Roberson on 24 Jan 2013
This would leave 0s untouched in places where one vector was shorter than the other. Which might be fine or might not be.
Note that in general it would be better to supply class(v1) as the final argument of zeros(), to handle the situation where the vectors were (e.g.) uint8

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More Answers (1)

Walter Roberson
Walter Roberson on 23 Jan 2013
V = reshape([V1;V2], 1, []);
  2 Comments
Walter Roberson
Walter Roberson on 24 Jan 2013
Then the two vectors would not be "1xN dimensions" and it would be a different Question -- one would immediately attract questions about what it meant to interweave if the two vectors were not the same size.

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