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How to add NaN columns in a vector?

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Syed Wafa
Syed Wafa 2017-2-26
编辑： Roger Stafford 2017-2-26
I have a vector X which is a 1*38 double (x1,x2,x3,x4,x5,....x38). I want to calculate the difference between every adjacent cell (for example, between x3 and x4, x4 and x5 etc.) and if the difference is greater than 0.0002, I want NaN columns to be added between the two adjacent cells, such that the number of columns between adjacent cells will equal the difference divided by 0.0002.

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Roger Stafford
Roger Stafford 2017-2-26
编辑：Roger Stafford 2017-2-26
Let X be your row vector.
p = cumsum([1,1+floor(abs(diff(X))/0.0002)]);
T = NaN(1,p(end));
T(p) = X;
X = T;
(Note: This doesn't reshape X. It extends its length by the insertion of NaNs.)

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