Programming Problem in structure

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ar fa
ar fa 2015-6-9
评论： ar fa 2015-6-9
I have these below codes:
a(1).x = 3;
a(2).x = 1;
a(3).x = -5;
a(4).x = 2;
b = [0 0];
b = a(1:2).x
======================
output => b = 3
I want variable b be equal to [3 1] but variable b is 3.
(Note: "[b(1) b(2)] = a(1:2).x" is not Suitable Answer for me Because for bigger array this solution is overwhelming)
Please Help me.
Thanks

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采纳的回答

per isakson
per isakson 2015-6-9
Try
>> b = [a(1:2).x]
b =
3 1

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