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We daily do the hourly analysis of one day data and generate results. After this we do daily analysis of one month's data or for certain number of days i.e 60 or 120 days. Daily analysis is not as complex as hourly analysis because we need not to apply specific formulas to calculate different metrics instead it uses just the hourly analysis results generated by gatdata_new.pl and aggregate hourly values for one day. Similarly in last 60 or 120 days analysis we just aggregate hourly data of respective days for each metric.