How to extend/add elements to an array?

2019 4 15
2 个回答
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更新时间：2019 4 17
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I want to extend an array at the points were the array are 0.
For example an array like this:
A=[2 3 4 5 0 1 4 5 5 0 3 4 0 2 0 ];
At each zero in A i want to extend by B=[3 2 3 5];
so the new array will be:
C=[2 3 4 5 0 0 0 1 4 5 5 0 0 3 4 0 0 0 2 0 0 0 0 0];

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Andrei Bobrov
Andrei Bobrov 2019-4-15
编辑：Andrei Bobrov 2019-4-16

0 个投票

A = [2 3 4 5 0 1 4 5 5 0 3 4 0 2 0 ];
B = [3 2 3 5];
out = A(sort([find(A),repelem(find(A == 0),B)]));

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Rikke
Rikke 2019-4-16
编辑：Rikke 2019-4-16
@Andrei
I wrote wrong in the first place, i want all the zeros to exceed so B will be for example:
B= [3 2 3 5];
out will then be =[2 3 4 5 0 0 0 1 4 5 5 0 0 3 4 0 0 0 2 0 0 0 0 0];
Andrei Bobrov
Andrei Bobrov 2019-4-16
Hi Rikke!
I fixed my answer.
Rikke
Rikke 2019-4-17
Brilliant! Thanks!

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Rikke
Rikke 2019-4-16

0 个投票

I got the solution for B= [3 2 3 5]. Thanks Andrei!
A=[2 3 4 5 0 1 4 5 5 0 3 4 0 2 0 ];
B=[3 2 3 5];
jj = find(A == 0);
out = A(sort([find(A),jj,repelem(jj,B)]));
Madhan I think ii is if you want to add zeros to spesific zeros in the array and not all of them.

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