Access data in a structure array using index

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0 个投票

After a bit of searching the internet I still haven't come up with a good way to do this without a for loop. I have a structure like the following:

S(1).x{1}=1;
S(1).name{1}='a';
S(1).x{2}=2;
S(1).name{2}='b';
S(2).x{1}=2;
S(2).name{1}='b';
[tf loc]=arrayfun(@(x)ismember('b',x.name),S)

This gives

loc=[2 1]

so I want to access S(1).x(2) and S(2).x(1). Is there a way to extract the data I want into an array without using a loop?

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Azzi Abdelmalek 2013-10-9

Your question is not clear, the answer is in your question

S(1).x(2) 
S(2).x(1)

Nathan 2013-10-9

Is there some way to achieve it in a single line rather than accessing each S(i) individually?

Answer 1

Azzi Abdelmalek 2013-10-9

编辑：Azzi Abdelmalek 2013-10-9

0 个投票

If you want to extract all S.x

v={S.x}

% to have S(1).x(2)

v{1}(2)

Azzi Abdelmalek 2013-10-9

There is no reason to avoid systematically a for loop.