Matlab: Listing field name values of a struct

s = struct ;
s(1).dat =‘a' ;
s(1).freq=11 ;
s(2).dat =‘b' ;
s(2).freq=22 ;

Where:

s(1)

ans =

     dat: 'a'
    freq: 11

How do you access [‘a’, ‘b’] and [11, 22]?

[s.dat] , [s.freq]

The [] are really important here.

[s.freq]

ans =

    11    22

Solution found on a Loren Post.