Issues with looping in structure: variable in the name
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I am loading one Excel spreadsheet with 11 tabs. The 11 tabs are named fl1, fl2,... fl11.
The spreadsheet is currently loaded into a structure named flight_data. I don't like the way it is organized, so I want to create a 11 new structures: somename1, somename2,....somename11.
I think the code will show how I'm trying to structure my data. The goal is to have 11 strutures that look like this:
%my loop that doesn't work
for i = 1:11
fpro(i).loc7.x = flight_data.fpro{i}(:,1)
end
%my structure setup
fpro(i).name = 'Flight Profile {i}';
fpro(i).loc7.x = flight_data.fl{i}(:,1)
fpro(i).loc9.x = flight_data.fl{i}(:,4)
fpro(i).loc10.x = flight_data.fl{i}(:,7)
fpro(i).loc7.y = flight_data.fl{i}(:,2)
fpro(i).loc9.y = flight_data.fl{i}(:,5)
fpro(i).loc10.y = flight_data.fl{i}(:,8)
fpro(i).loc7.z = flight_data.fl{i}(:,3)
fpro(i).loc9.z = flight_data.fl{i}(:,6)
fpro(i).loc10.z = flight_data.fl{i}(:,9)
2 commentaires
Stephen23
le 22 Août 2024
Modifié(e) : Stephen23
le 22 Août 2024
"...I want to create a 11 new structures: somename1, somename2,....somename11."
Best avoided:
Rather than inefficiently forcing pseudo-indices into variable names just use actual indices into e.g. a structure array. Real indexing will be simpler and much more efficient thatn what you are attempting. Your approach will make working with your data more complex and inefficient.
Réponse acceptée
Voss
le 22 Août 2024
I guess this is something like your flight_data variable:
flight_data = struct('fl',{permute(num2cell(rand(10,9,11),[1 2]),[3 1 2])})
flight_data.fl
I think you're going for this:
clear('fpro')
for i = 1:numel(flight_data.fl)
fpro(i).name = sprintf('Flight Profile %d',i);
fpro(i).loc7.x = flight_data.fl{i}(:,1);
fpro(i).loc9.x = flight_data.fl{i}(:,4);
fpro(i).loc10.x = flight_data.fl{i}(:,7);
fpro(i).loc7.y = flight_data.fl{i}(:,2);
fpro(i).loc9.y = flight_data.fl{i}(:,5);
fpro(i).loc10.y = flight_data.fl{i}(:,8);
fpro(i).loc7.z = flight_data.fl{i}(:,3);
fpro(i).loc9.z = flight_data.fl{i}(:,6);
fpro(i).loc10.z = flight_data.fl{i}(:,9);
end
Check some of the results:
fpro
fpro(1)
fpro(2)
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