Accessing Elements in Arrays

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Chris Stillo 2020-12-2

评论： Ameer Hamza 2020-12-2

I have an array like this:

s.x

ans = 4000

280

ans = 4272.5

282

ans = 4553.85

284.29

etc......

I would like to access the first element in each case to plot their values (4000 4272.5 4553.85).

s(1,1).x([1]) yields 4000

s(1,2).x([1]) yields 4272.5

s(1, 1:2).x([1]) gives error: a cs-list cannot be further indexed.

What is the proper syntax needed to yield an array containing the values 4000 4272.5 and 4553.85 please?

Ameer Hamza 2020-12-2

编辑：Ameer Hamza 2020-12-2

You can use arrayfun()

v = arrayfun(@(s_) s_.x(1), s)

Indexing of struct arrays and cell arrays can be a bit confusing in MATLAB. Check the following links

Following is another solution

v = [s.x];
v = v(1,:);

Chris Stillo 2020-12-2

That's great. Thanks again.

Ameer Hamza 2020-12-2

I am glad to be of help!

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