a = ['A'; 'B'; 'C'; 'A'; 'B'; 'C'];
b = [1; 1; 1; 2; 2; 2];
c = ['N'; 'J'; 'N'; 'J'; 'N'; 'J'];
T = table(a,b,c)
T_new = unstack(T,2,1)
results in:
T =
6×3 table
a b c
_ _ _
A 1 N
B 1 J
C 1 N
A 2 J
B 2 N
C 2 J
T_new =
2×4 table
c A B C
_ _ _ _
N 1 2 1
J 2 1 2
