Create a structure of a field in the workspace

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Samy Alkhayat
Samy Alkhayat 2022-8-16
评论： Samy Alkhayat 2022-8-16
Hello,
I am trying to create a structure of all variables in the workspace that includes a field value of those variables.
For example, I have variables A, B, C, and I want to have:
A.Value = A;
B.Value= B;
C.Value= C;
I did this for all 200 variables in myworkspace and I am getting the error below:
Unable to perform assignment because dot indexing is not supported for variables of this type.
Can you please advice if there's more efficient way? Thanks in advance
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Stephen23
Stephen23 2022-8-16
"I am trying to create a structure of all variables in the workspace that includes a field value of those variables."
https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval
If you want one structure, why are you creating three separate structures in your example?
Samy Alkhayat
Samy Alkhayat 2022-8-16
@Stephen23 the reason is to align with a Simulink model that all parameters are structured like in " A.Value "
So I need to use a structure of each field in my workspace to be .Value

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Dyuman Joshi
Dyuman Joshi 2022-8-16
编辑：Dyuman Joshi 2022-8-16
Ran in:
You are overwriting numeric values (double precision) with struct values. That is not allowed and hence the error.
If all your variables are individually defined, then you will have to assign them manually. If they were in a matrix, we could have used for loop.
Assigning them to a single structure -
A=3;B=4;C=5;
str(1).Value=A;
str(2).Value=B;
str(3).Value=C;
...
val=[str(1:3).Value]
val = 1×3
3 4 5

更多回答（1 个）

KSSV
KSSV 2022-8-16
You can save them into a matfile and access, as you like.
A = 1 ;
B = 2;
C = 3 ;
save Test.mat ;
S = matfile('Test.mat') ;
S.A
S.B
S.C

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