How to get the matrix when I need a logic matrix

How to get a matrix QQQQ when I need a logic matrix AAAA

AAAA=[

true true true true false true true

true true true true false true true

true true true true false true true

true true true true false true true

]

y=[

0.0246 0.4415 0.0274 0.0269 0.0264 0.0255 0.0557

0.4535 0.0260 0.4495 0.4455 0.0563 0.0566 0.0569

0.0251 0.0542 0.0545 0.0548 0.0551 0.0554 0.0563

1.0000 0.1615 0.0061 0.0156 0.0692 0.1323 0.0001

]

QQQQ

[

0.0246 0.4415 0.0274 0.0269 0 0.0255 0.0557

0.4535 0.0260 0.4495 0.4455 0 0.0566 0.0569

0.0251 0.0542 0.0545 0.0548 0 0.0554 0.0563

1.0000 0.1615 0.0061 0.0156 0 0.1323 0.0001

]

Answer 1

[David Hill]

QQQQ=AAAA.*y;

[Steven Lord]

That works as long as all elements in y are finite.

Inf*false

I'd use logical indexing.

QQQQ = zeros(size(y));
QQQQ(AAAA) = y(AAAA);