MATLAB: Copy of one field of a structured array

arraystructures

Is there a way to make a copy of one field of a structured array without doing a loop? I have tried but it just results in the first element.
Creation of sample structure
for i=1:5
    A(i).A = i; 
    A(i).B = i+10;
end
>>C = A.B
C = 
      11
Likewise
>> C = A(1:3).B
C  =
      11
instead of C(1).B = 11, C(2).B = 12, and C(3).B = 13 like I want.

Best Answer

One way to do it:
    >> C = cell2struct( num2cell([A.B]), {'B'} )
    C = 
    5x1 struct array with fields:
        B
    >> C(1).B
    ans =
        11
    >> C(2).B
    ans =
        12
another
    >> C = struct( 'B',  num2cell([A.B]) )
    C = 
    1x5 struct array with fields:
        B
    >> C(1).B
    ans =
        11
    >> C(2).B
    ans =
        12
    >>
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