Matlab structure of struct

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Florian Spicher
Florian Spicher 2021-11-12
评论： Florian Spicher 2021-11-12
Hi!
I'd like to create structures and store them, but I don't know how to do it. For example, for a function, we write something like
function f=MyFunction(arg1,...,argN)
...
end
and then we write the different operations. This allows us to write MyValue=MyFunction(...). I'd like to do the same for structures, something like MyObject=MyStruct(...). Could someone give me a reference document which explains how to do this for structures please? So far, the only thing I found is how to create structures from the command window. Thanks!
  2 个评论
Jan
Jan 2021-11-12
Stucts can be defined in the code exactly as they are created in the command window. See:
doc struct
doc cell2struct
doc table2struct
Florian Spicher
Florian Spicher 2021-11-12
I saw this doc. I might be wrong, but to create a structure like this we have to assign values to the fields right? Like stuct.field=sth. What I'd like is only have "a skeleton" of my struct, ie. only store its fields without any values assigned to them.

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采纳的回答

Jan
Jan 2021-11-12
Ran in:
MyStruct = cell2struct(cell(2, 1), {'field1'; 'field2'})
MyStruct = struct with fields:
field1: [] field2: []
Now the fields exist, but contain empty matrices only.

更多回答（1 个）

Image Analyst
Image Analyst 2021-11-12
Not sure what you mean. You can call the function whatever you want and it can take in and return whatever you want. If you want to create a custom structure, there is already a function called struct() to do that.
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Image Analyst
Image Analyst 2021-11-12
Looks like Jan showed you how to create one struct. If you want an array of them, call repmat():
MyStruct = cell2struct(cell(2, 1), {'field1'; 'field2'})
structArray = repmat(MyStruct, 5, 2 )
structArray will be a 5 by 2 array of structures.
If that helps, can you "Vote" for my answer?
Florian Spicher
Florian Spicher 2021-11-12
Nice, it is definitely going to be useful to know that. Thanks a lot!
I already voted for your answer though!

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