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Access Data Within Structure Array

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Jon
Jon 2022-11-2
评论： Jon 2022-11-2
Hello,
I'm new to Structure Arrays, but believe it is what I'm looking for to help me with my script after reading advice to not dynamically name variables.
One question I had: If I have data like this:
g = [1,3,5];
A = [90 89 88 87];
B = rand(4,2);
C = 70;
s.a = g;
s.b = {A,B,C};
I understand if I want to access the second datapoint of g, I'd type:
s.a(2)
Which will give me '3'.
Let's say I want to access the number 89 within A through the Structure.
This gives me the whole A array:
s.b(1)
But is there something like this, where I can get the 89 directly?
s.b(1(2))
This doesn't work, but I'm trying to get the second number (89) of the first variable (A) within s.b.
Or can I not do this?
Thanks.
  2 个评论
Dyuman Joshi
Dyuman Joshi 2022-11-2
Ran in:
There is a way
g = [1,3,5];
A = [90 89 88 87];
B = rand(4,2);
C = 70;
s.a = g;
s.b = {A,B,C};
val=cellfun(@(x) x(2), s.b(1))
ans = 89

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采纳的回答

Voss
Voss 2022-11-2
编辑：Voss 2022-11-2
Ran in:
g = [1,3,5];
A = [90 89 88 87];
B = rand(4,2);
C = 70;
s.a = g;
s.b = {A,B,C};
s.b{1}(2)
ans = 89
Relevant documentation: https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html

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