Converting a vector of structs to just one struct (vectorizing)

Question

Emanuel 2022-7-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1762765-converting-a-vector-of-structs-to-just-one-struct-vectorizing

评论： Stephen23 2022-7-18

So i have this struct and in it there are, for example, 402 1x1 structs with the same variables (not same values of course).

What i need is to all that structs to become just one (or none at all, just the variables). In other words, if i have 402 user variables in the shape

[1 2 3], i want to make a 402x3 variable.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Stephen23 2022-7-18

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/1656435-tutorial-comma-separated-lists-and-how-to-use-them

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Jan 2022-7-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1762765-converting-a-vector-of-structs-to-just-one-struct-vectorizing#answer_1009765

在 MATLAB Online 中打开

X = cat(1, S(:).FieldName);
% Or shorter:
X = cat(1, S.FieldName);
% Example:
S(1).FieldName = [1,2,3];
S(2).FieldName = [4,5,6];
X = cat(1, S.FieldName)
X = 2×3
     1     2     3
     4     5     6

3 个评论
显示 1更早的评论隐藏 1更早的评论

Jan 2022-7-18

I cannot know, what "I have 402 1x1 structs" exactly means. Is this a struct array or are they 402 different variables (which would be a very bad idea)?

I've showed how to extract the data of a field stored in a struct array. How to apply it to your data would get clear, if you explain exactly, what kind of data you have. Prefer to post some code which creates example data.

Emanuel 2022-7-18