I want the GUI to input a result from another m file in a static text box after clicking a push button.

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Gian Paulo
Gian Paulo 2022-12-14
编辑： Voss 2022-12-15
I am trying to create a GUI using guide. I have a .m file which has a certain result.
power_difference = mean(adj_crank_power)-mean(trainer_power)
% Display the results using fprintf
if power_difference < -1
fprintf('The trainer over-estimates the power by %0.2fW.\n', abs(power_difference))
elseif power_difference > 1
fprintf('The trainer under-estimates the power by %0.2fW.\n', abs(power_difference))
else
fprintf('The trainer gives an accurate power reading compared to the crank.\n')
end
I want the fprintf result to appear in my static text box after clicking a push button

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采纳的回答

Voss
Voss 2022-12-15
As I understand the situation, you have an m-file that contains the code you posted, and you want to run that m-file from your GUI and have the message printed by the m-file to the command line appear instead in a static text box in your GUI. Is that right?
If so, modify the m-file to return a character vector or string (make this optional, if you need to preserve the existing behavior of the m-file). Something like:
function out = get_power_message(adj_crank_power,trainer_power)
power_difference = mean(adj_crank_power)-mean(trainer_power);
if power_difference < -1
out = sprintf('The trainer over-estimates the power by %0.2fW.', abs(power_difference));
elseif power_difference > 1
out = sprintf('The trainer under-estimates the power by %0.2fW.', abs(power_difference));
else
out = sprintf('The trainer gives an accurate power reading compared to the crank.');
end
Then call the function in your GUI with the appropriate inputs, and set the 'String' of your static text box to the result.
% for example:
msg = get_power_message(adj_crank_power,trainer_power);
set(handles.text_box,'String',msg);
  2 个评论
Voss
Voss 2022-12-15
编辑：Voss 2022-12-15
Try moving the function to the end of the file.
How do you have code for a GUIDE GUI in a script? Maybe you should upload the relevant files, using the paperclip icon.

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更多回答（1 个）

Jan
Jan 2022-12-15
function msg = YourFcn(your inputs)
power_difference = mean(adj_crank_power)-mean(trainer_power);
if power_difference < -1
msg = sprintf('The trainer over-estimates the power by %0.2fW.', abs(power_difference));
elseif power_difference > 1
msg = sprintf('The trainer under-estimates the power by %0.2fW.', abs(power_difference));
else
msg = sprintf('The trainer gives an accurate power reading compared to the crank.');
end
end
Call this from inside the callback of the pushbutton
function pushbuttonCallback(ObjectH, EventData, handles)
msg = YourFcn(the inputs); % No idea, where the inputs come from!
set(handles.staticText.String, msg); % Insert the name of the handle
end

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