MATLAB: How to assign value in an array depending on the index stated in another array

Question

Hi all,

After performing some processing, now the variable 'a' contains [2 5 9].

Let say i have another variable 'b', variable 'b' is pre-initialized to be zero depending on a length of input, let say 10. b = [0 0 0 0 0 0 0 0 0 0];

What I want is, the elements that are stated in variable 'a' should be set ONE in variable 'b'. b= [0 1 0 0 1 0 0 0 1 0]

How could I do this in Matlab? Appreciate any idea, thanks

Answer 1

Use

b(a) = 1