MATLAB: How can i initialize a matrix (20/5) with random 0 and 1s

each row of matrix need to be a number in binary

matrix consist of random numbers between (-10,10) in binary

Best Answer

 result = rand(20,5);
 result = result > 0.5;

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help rand
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What I do is to load a .mat file in the OpeningFcn function. Check to see if it exists first, otherwise set up your defaults ans create the file. Any time you change something, like the folder you're working in, a scroll bar value, a checkbox, or radio button, etc. Update your "UserSettings" structure and save it out to disk. Like

UserSettings.scrollValue = yourScrollBarValue.
save(yourMatFullFileName, 'UserSettings');

Then in your OpeningFcn:

if exist(yourMatFullFileName, 'file')
  recalledSettings = load(yourMatFullFileName);
else
  % Make up some defaults for UserSettings
  UserSettings.fubar = 42; % Whatever.

  UserSettings.scrollValue = 0.69; % Whatever.
  % Then:
  save(yourMatFullFileName, 'UserSettings');
end

Make sure you read the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.3F

Best Answer

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