MATLAB: How to use variables as filename when saving to a .csv file

Hello, I have a program,which takes start date and end date from user,I would like to use the variables as the filename when outputing to a .csv file. I have the following variables :

start_date =[2015, 1, 1];

end_date = [2015, 1, 2];

I want my csv file to be saved in this manner:

 output_filename = "start_date " -- "end_date"--"data".csv.

Note: start_date is 1×6 double and end_date is 1×3 double and outputfilename is storing file name to be saved.

Thanks alot in advance.

Best Answer

 output_filename = [datestr(datenum(start_date), 'yyyy-mm-dd') ' -- ' datestr(datenum(end_date), 'yyyy-mm-dd') '--data.csv']

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% Generate a random time (down to granularity of seconds)
% Parameters
NUMBER_RANDOM_TIMES = 100;
SECONDS_PER_DAY = 24*60*60;
START_DATE = '2013-01-01';
END_DATE   = '2013-06-30';
% Algorithm
startDateNum = datenum(START_DATE,'yyyy-mm-dd');
endDateNum   = datenum(END_DATE,  'yyyy-mm-dd');
dayRange = endDateNum - startDateNum;
secondsRange = SECONDS_PER_DAY*dayRange;
randomNumberOfSeconds = randi(secondsRange,NUMBER_RANDOM_TIMES,1);
randomDatenums = startDateNum + randomNumberOfSeconds/SECONDS_PER_DAY;
randomDates = datestr(randomDatenums);

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