How do I make a script to show the field names of struct in a struct

4 次查看（过去 30 天）

显示更早的评论

Emily 2022-4-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1701980-how-do-i-make-a-script-to-show-the-field-names-of-struct-in-a-struct

评论： Matt J 2022-4-22

采纳的回答： Matt J

I currently have the code below to list out only the structs.

sTable=struct2table(s);

sStruct=sTable(:,vartype('struct'));

Inside the table there are 3 1x1 structs that I wanted to access.

I can get there via clicking on the variables workspace or using individual fieldnames

a=fieldnames(sStruct.v1_abc)

but I wanted to have a script to automatically access it by entering the first colnmn names show the fields.

Thanks in advance.

2 个评论
显示无隐藏无

Matt J 2022-4-21

Please attach sStruct and also clarify "by entering the first colnmn names show the fields".

Emily 2022-4-21

a1='abcd';

a2=[1 2 3];

s.a=char(a1,a2);

s.b.a = ones(3);

s.b.b = eye(4);

s.c.c = magic(5);

s.d=char(a2,a1);

For example, for the s Struct above I want it to show the fieldnames for s.b and s.c without going to the variables workspace.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Matt J 2022-4-21

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1701980-how-do-i-make-a-script-to-show-the-field-names-of-struct-in-a-struct#answer_947890

在 MATLAB Online 中打开

Something like this?

a1='abcd';
a2=[1 2 3]; 
s.a=char(a1,a2);
s.b.a = ones(3);
s.b.b = eye(4);
s.c.c = magic(5);
s.d=char(a2,a1);
showsubfields(s,'b','c')
Field: b
   a
   b
Field: c
   c
function showsubfields(S,varargin)
   for i=1:numel(varargin)
       
     fn=varargin{i};
     if ~isstruct(S.(fn)); continue; end
     
     disp("Field: "+fn)
     
     subfns=fieldnames(S.(fn));
     
     disp(char("   "+subfns))
     
   end
end