MATLAB: How to print the structure, with several fields, as a title in MATLAB

MATLAB

I have a structure with several fields. I would like to print out the value of each field as each plot's title.

Best Answer

There is no function to directly perform this in MATLAB. To do this, you will need to convert the structure to a cell array of strings and a string. The following code snippet serves as an example of how to go about this:

         s.f1 = 'Sunday'; s.f2 = 'Monday'; s.f3 = 'Tuesday'; 
         s.f4 = 'Wednesday'; s.f5 = 'Thursday'; s.f6 = 'Friday';
         s.f7 = 'Saturday';
         myfig = figure;
         structString = [];
         structString = structfun(@(field)sprintf(field),s,'UniformOutput',false);
         cellstr = struct2cell(structString);
         str = sprintf('\n%s',cellstr{:})
         mytextbox = title(str,'FontSize','6')

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MATLAB: Ploting variables from a data structure

% some random structure for demo 
S(1).v = rand(10,2) ; S(1).name = 'one' ;
S(2).v = rand(10,2) ; S(3).name = 'two' ;
S(3).v = rand(10,2) ; S(3).name = 'three' ;
N = length(S) ;  % length of the structure array 
% plot 
for i = 1:N
    subplot(N,1,i)
    plot(S(i).v(:,1),S(i).v(:,2))
    title(S(i).name) ;
end

MATLAB: Deleting the same rows from every field of a structure

This can be accomplished by the use of the "structfun" function along with the "removerows" function as follows :

>> rows_to_remove = [4 5]; %vector of row indices you want to remove
>> struct_new = structfun(@(x) (removerows(x, 'ind', rows_to_remove)), s, 'UniformOutput', false);

The new structure "struct_new" now contains the fields without the 4th and 5th rows.

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MATLAB: Deleting the same rows from every field of a structure

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