How to loop over different named structs?

Hi All,

I have a set of cursor_info's which containt the x,y- coordinates generated from different figures, as such:

cursor_info 1x1 struct

cursor_info1 1x1 struct

cursor_info2 1x1 struct

cursor_info3 1x1 struct

.

.

cursor_infoN 1x1 struct

By using a for loop and the cell2mat funtction i'm trying to get all cursor info in matrix form, like this

for i = 1:N

All_data(i,:) = cell2mat({cursor_info{I}.Position}');

end

But I don't know how to change the cursor_info's name in the for loop from cursor_info to cursor_info1 and so on.

Thanks in advace!

[Stephen23]

@Aris van Houten: you forgot to tell us the most important piece of information: how did you get all of those individual variables into the workspace? Did you name them all by hand? Did you load them from a mat file (or files)? Were they created by a badly-written script?

[Aris van Houten]

They are all individually created by the data cursor tool in the figure window. Followed by exporting data cursor to workspace option.

Answer 1

[Stephen23]

cursor_info.Position   = [0,1,2,3];
cursor_info1.Position  = [1,1,2,3];
cursor_info2.Position  = [2,1,2,3];
cursor_info10.Position = [10,1,2,3];
cursor_info.Whatever   = 0;
cursor_info1.Whatever  = 1;
cursor_info2.Whatever  = 2;
cursor_info10.Whatever = 10;
%
save('temp.mat','-regexp','cursor_info\d*');
S = load('temp.mat')

S = struct with fields:
      cursor_info: [1×1 struct]
     cursor_info1: [1×1 struct]
    cursor_info10: [1×1 struct]
     cursor_info2: [1×1 struct]

F = fieldnames(S);
V = str2double(regexp(F,'\d*$','match','once'));
V(isnan(V)) = 0;
[~,X] = sort(V);
C = struct2cell(S);
S = [C{X}]

S = 1×4 struct array with fields:
    Position
    Whatever

P = vertcat(S.Position)

P = 4×4

0 1 2 3 1 1 2 3 2 1 2 3 10 1 2 3

[Aris van Houten]

Thanks a million times, Stephen!

Answer 2

[Sulaymon Eshkabilov]

for ii = 1:N
      All_data(ii,:) = cell2mat({['cursor_info' num2str(ii)].Position}');
end

Good luck

[Aris van Houten]

It does not recognize the .Position