cols = [
        "total_sales",
        "guests",
        "check_count",
        "temp",
        "high_temp",
        "humidity",
        "severity",
        "guests_log",
        "guests_log_diff",
        "temp_log",
        "temp_log_diff"
        ]

start_date = '2018-02-01'
end_date = '2018-05-01'
