Converting Struct field to array

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Gabriel Stanley
Gabriel Stanley 2021-6-9
编辑： Stephen23 2023-6-17
I have an n-value structure array with multiple fields, and want to extract a specific field (all values thereof are (1x4) single arrays) into a nx4 array.
MyMatrix = [MyStruct(:).FieldC];
concatenates the values of the field, giving me a 1x(n*4) array. There's probably a way to reshape that, but I would appreicate a more direct solution as I'm doing this in the command window on an as-needed basis, rather than via a script.

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采纳的回答

James Tursa
James Tursa 2021-6-9
Does this do what you want?
MyMatrix = vertcat(MyStruct.Field);
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Babak
Babak 2023-6-16
This does not work if the field is 2 or more structure layers down from the indexing. e.g. d.field1.field2 where d is a structure array, e.g. d(1).field1.field2

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更多回答（1 个）

David Hill
David Hill 2021-6-9
MyMatrix=cell2mat(struct2cell(MyStruct));
  2 个评论
Gabriel Stanley
Gabriel Stanley 2021-6-9
Editing my original post to the following effect: there are multiple field in the structure array, and I'm only looking to extract 1 of them to an array.
Matt Weber
Matt Weber 2022-10-11
David Hill's solution worked for me, the other one did not. My context was a struct with just one field level.

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