add to extra elements every 4 values and enter particular values

Hi all,

I have a vector [1x24] and I would like to add 2 extra elements every 4 elements, so the new vector will be [1x32].

The two extra elements will be the first two number of the first group pf 4 numbers, an example:

vector_1=[ 1 2 4 5 7 8 9 3......]

Vector_2=[1 2 4 5 1 2 7 8 9 3 7 8.....]

thanks in advance

Nikolas

Answer 1

[Walter Roberson]

temp = reshape(vector_1, 4, []);
temp = [temp; temp(1:2,:)];
Vector_2 = reshape(temp, 1, []);

[Nikolas Spiliopoulos]

Thanks a lot it works!!