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Taking out entries of a Vector to make a new Vector

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I have a 400 x 1 column vector, is it possible to 'splice' out every 4-th entry of that vector to end up with a 100 x 1 column vector, plus a 300 x 1 column vector left over from the original vector? Let me know if this doesn't make sense and I can explain further.

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Accepted Answer

Stephen Cobeldick
Stephen Cobeldick on 11 Aug 2019
Edited: Stephen Cobeldick on 11 Aug 2019
Where V is your vector:
X = V(4:4:end);
Y = V;
Y(4:4:end) = [];

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Tom
Tom on 11 Aug 2019
This seems to remove the first and the fifth entry and so on, I need to remove the fourth, the eighth, and so on.
Stephen Cobeldick
Stephen Cobeldick on 11 Aug 2019
"This seems to remove the first and the fifth entry and so on, I need to remove the fourth, the eighth, and so on."
Yes it did, because you did not specify the starting element. However changing the code is pretty trivial: I changed my answer from starting at element 1 to starting at element 4.

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