How to Access These Values of This Struc without Using a For Loop?

Here’s my initial struct:

A(1).B.C = 'a';
A(2).B.C = 'b';
A(3).B.C = 'a';
A(4).B.C = 'a';

I want to change the values of C based on values of Values and indexes of IndexingArray:

Values = {'a', 'b'}
IndexingArray = [1 1 0 1];

So, my struct will be:

A(1).B.C = 'b';
A(2).B.C = 'b';
A(3).B.C = 'a';
A(4).B.C = 'b';

Isn’t really there a way to do it without using a for loop?

[Jan]

Please do not post a question multiple times. See https://www.mathworks.com/matlabcentral/answers/329467-how-to-change-values-of-a-field-by-an-indexing-array . Thanks.