plz help how can repetition rows matrix

how can repetition rows matrix deponds number if i have a=[ 1 0 0 ;0 0 1; 0 1 0] and n=4

i wanna have rep_a=[ 1 0 0; 0 0 1; 0 1 0 ;1 0 0]

if n=5 rep_a=[ 1 0 0; 0 0 1; 0 1 0 ;1 0 0;0 0 1]

[dpb]

HINT:

nR=size(a,1);
N=4;
M=fix(N/nR);
C=rem(N,M*nR);

[eman baky]

Thanks

Answer 1

[Jan]

a     = [1 0 0; 0 0 1; 0 1 0];
rows  = size(a, 1);
n     = 5;
index = rem(0:n-1, rows) + 1

index = 1×5

1 2 3 1 2

b     = a(index, :)

b = 5×3

1 0 0 0 0 1 0 1 0 1 0 0 0 0 1

[eman baky]

Thank you sir!