datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 5:30:00,30 , 0.43198,29.15853,16.06076,7.414828
sgpcmbeC1.c1,2003,06 6:30:00,30 ,14.62155,122.1532,71.09175,26.62118
sgpcmbeC1.c1,2003,06 7:30:00,30 ,61.67633,198.0412,128.0616,37.47474
sgpcmbeC1.c1,2003,06 8:30:00,30 ,69.50162,353.4722,189.9866,71.81986
sgpcmbeC1.c1,2003,06 9:30:00,30 ,74.70535,378.2617,222.2001,85.61069
sgpcmbeC1.c1,2003,0610:30:00,30 ,77.62378,472.0983,262.4489,105.8999
sgpcmbeC1.c1,2003,0611:30:00,30 ,79.68304,510.5268,299.3914,132.4985
sgpcmbeC1.c1,2003,0612:30:00,30 ,85.54788,562.9134,300.3665,146.1469
sgpcmbeC1.c1,2003,0613:30:00,30 ,81.03609,563.6636,286.2429,141.2789
sgpcmbeC1.c1,2003,0614:30:00,30 ,83.55843,  458.58,249.2006,114.5664
sgpcmbeC1.c1,2003,0615:30:00,30 , 41.7613,373.3432,213.5789,90.87219
sgpcmbeC1.c1,2003,0616:30:00,30 ,52.65558,298.3565,162.6378,80.95613
sgpcmbeC1.c1,2003,0617:30:00,30 ,12.68764,195.5871,121.3105,51.64036
sgpcmbeC1.c1,2003,0618:30:00,30 ,0.270323,112.9596,68.78565,26.88865
sgpcmbeC1.c1,2003,0619:30:00,30 ,0.455841,68.90433,16.60027,11.76607
sgpcmbeC1.c1,2003,0620:30:00,30 ,       0,5.555488,0.185183,1.014289
sgpcmbeC1.c1,2003,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0623:30:00,30 ,       0,       0,       0,       0