R8218/openLogFile.m
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openLogFile.m
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			function logFileID = openLogFile(filename)
			%SETLOGFILE Creates a log file using filename in a log directory, within
			%current working directory.
			% The directory log is created if not present.

			% Check if log dir exists in working directory
			logDir = 'log';
			if ~exist('log', 'dir') % If not create dir log
			mkdir('log')
			end
			logFile = [logDir '/' filename];
			logFileID = fopen(logFile, 'w');
			fprintf(logFileID, filename); % Write name of file
			fprintf(logFileID, '\nDate: '); % Write date
			fprintf(logFileID, datestr(datetime)); % Write time

			output = 1;
			message = 'OK';
			end