See if the "diary" command is what you're looking for.
You can also write just errors to a log file if you catch them and call a function, like WarnUser() in the code below, that will alert the user and append the message to a log file.
try
% Your code goes here.
catch ME
% You get here if there was an error in this function
% or some function this function called that was unhandled.
errorMessage = sprintf('Error in function %s() at line %d.\n\nError Message:\n%s', ...
ME.stack(1).name, ME.stack(1).line, ME.message);
WarnUser(errorMessage);
end
====================================================================
function WarnUser(errorMessage)
% Alert user via the command window and a popup message.
fprint(1, '%s\n', errorMessage); % To command window.
uiwait(warndlg(errorMessage));
% Open the Error Log file for appending.
fullFileName = 'Error Log.txt';
fid = fopen(fullFileName, 'at');
fprint(fid, '%s\n', errorMessage); % To file
fclose(fid);
return; % from WarnUser()
