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Assign a 'double' variable to struct

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Ziv Kassner
Ziv Kassner 2018-1-10
评论： Ziv Kassner 2018-1-11
I have a variable as such:
A.b = 'example';
And I want to change it to:
A.b.c = 2;
How can I do it without it prompting:
'Field assignment to a non-structure array object'
It worked on matlab's version before 2014.
Thank you,
Ziv
  2 个评论
Stephen23
Stephen23 2018-1-10
You can't.
You first define the field b as a double. You cannot then try to access field b as a structure.
Steven Lord
Steven Lord 2018-1-10
FYI this changed in release R2015b according to the Release Notes.

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采纳的回答

Jan
Jan 2018-1-10
编辑：Jan 2018-1-10
A.b = 'example';
A.b = struct('c', 2); % Overwrite field "b"
Or:
A.b = 'example';
A.b = [];
A.b.c = 2
It is strange, that this works with the empty matrix, if it fails with an error for a char vector. But the first method is better, because it overwrites the field clearly.

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