How to update a field value in a Struct Array

I am trying to update a field value in a struct array. For example if I have 1*10 struct of A with a field in it called B, I want to replace the following loop with another method:

for iLoop=1:10
  A(iLoop).B = 1;
end

The best thing I found is to use the setfield() function as:

A = setfield(A,num2cell(1:10),'B',num2cell(1),1);

This results in a 10-D struct which I cannot understand why. Does anyone know a way of doing this?

Answer 1

[Walter Roberson]

[A(1:10).B] = 1;

[Jiro Doke]

I think it should be

[A(1:10).B] = deal(1);

[Walter Roberson]

Hmmm, yes, you are right.

[Alex]

What if

    A(1).B=[ 0 0 0 0 0], A(2).B=[0 0 0]...A(10).B=[0 0 0 0]

and

    list=[ 4, 2,...,3 ]

The how would you change the indices specified in list such that

    A(1).B=[0 0 0 1 0], A(2).B=[0 1 0]...A(10).B=[0 0 1 0]

?

[Guillaume]

Rather than hijacking a very old question, start your own question. Gives somebody a chance to get the credits for the answer.