Hi Brandon,
m1 = rand(3,7)
m2 = m1(:,[1 3 4 5]).'
m1 =
0.0357 0.6787 0.3922 0.7060 0.0462 0.6948 0.0344
0.8491 0.7577 0.6555 0.0318 0.0971 0.3171 0.4387
0.9340 0.7431 0.1712 0.2769 0.8235 0.9502 0.3816
m2 =
0.0357 0.8491 0.9340
0.3922 0.6555 0.1712
0.7060 0.0318 0.2769
0.0462 0.0971 0.8235
for example, where the columns have been indicated. The .' takes the transpose, and it has to be used if m1 has any complex values, because ' takes the complex conjugate transpose.
