How to replace some values in an array with zero and some with values from another array?

A = [2 4 0 0 5 3 0 2 1 0 2];

B = [1 1 0 1];

I want to replace numbers in A greater than 0 with 0, and numbers in A which is 0 by the numbers in B in the order they are.

The new vector i want is C = [0 0 1 1 0 0 0 0 0 1 0];

I tried to use if statements inside a for loop:

for i = 1:length(A)

for j=1:length(B)

if A==0

C(i)=0;

else

C(i)=B(j);

end;

end;

end;

What happens is that j in B(j) is constant 4 (giving a value of B(4)=1 for all the B(j), and results in a C = [0 0 1 1 0 0 1 0 0 1 0])

Answer 1

[madhan ravi]

C=A;
C(A==0)=B;
C(A>0)=0

[Rikke]

Thank you!

It worked!

Answer 2

[Andrei Bobrov]

A = [2 4 0 0 5 3 0 2 1 0 2];
B = [1 1 0 1];
A1 = ~A;
C = double(A1);
C(A1) = B;

[Rikke]

Thank you!