How to delete a specific number from a vector, if there are duplicates after each other?

Hello,

I have a vector with numbers, see example below:

[1 2 3 4 5 0 4 6 5 0 0 98 0 0 1 2 23 4 0 0 0 2 5 8 0]

I would like to delete the second 0 where there are duplicates or more 0 following each other, so the new vector looks like below:

[1 2 3 4 5 0 4 6 5 0 98 0 1 2 23 4 0 2 5 8 0]

How can I do this?

Thank you for your help.

Answer 1

[Andrei Bobrov]

A = [1 2 3 4 5 0 4 6 5 0 0 98 0 0 1 2 23 4 0 0 0 2 5 8 0];

out = A([true;diff(A(:))~=0]);

or only fo zeros in A

out = A(~([true;diff(A(:))~=0] == 0 & A(:) == 0));

[Matilda]

This solution works perfect. Thank you for your help!

Answer 2

[ES]

a = [1 2 3 4 5 0 4 6 5 0 0 98 0 0 1 2 23 4 0 0 0 2 5 8 0];
a(a(l)==0 & a(l+1)==0)=[];

[Matilda]

Thank you for your tip.