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How to stretch matrix

Asked by Yu-Jou Pai on 1 Aug 2019
Latest activity Answered by Akira Agata
on 1 Aug 2019
I am wondering if there is a way to do so...
Suppose I have a 1 x 5 matrix that contains 5 random numbers, x=[2,10,31,24,11]
Now, I would like to make it become y=[2,3,10,11,31,32,24,25,11,12]
that is, add a column next to each column in z, and each of the additional column added carries the value that is +1 of z's value.

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2 Answers

Walter Roberson
Answer by Walter Roberson
on 1 Aug 2019
 Accepted Answer

y = reshape( [x; x+1], [], 1);

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Yu-Jou Pai on 1 Aug 2019
Thank you

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Akira Agata
Answer by Akira Agata
on 1 Aug 2019

Not so sophisticated, but intuitively clear way:
y = repelem(x,2);
y(2:2:end) = y(2:2:end)+1;

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