Insert values of one vector at specific places into another

Hello MATLAB-Community,

I'm stuck with the following problem:

If got two vectors, a and b.

a = [0 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 1 0];

b = [ 10 20 30 40 50 ]

Can somebody give ma a hint, how I best merge these two into

c=[0 0 0 0 10 0 0 0 20 0 30 0 0 0 40 0 0 50 0]

Thank you in advance for your help!

Christian

Answer 1

[Turlough Hughes]

a = [0 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 1 0];
b = [ 10 20 30 40 50 ];

c = zeros(size(a));
c(logical(a)) = b

c = 1×19

0 0 0 0 10 0 0 0 20 0 30 0 0 0 40 0 0 50 0

[Christian S.]

Wow, that was quick. Thank you very much!