datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,02 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 2:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 6:30:00,29 ,       0, 0.43516,0.015006,0.080807
sgpcmbeC1.c1,2000,02 7:30:00,29 ,       0,36.92213,14.35417,8.387412
sgpcmbeC1.c1,2000,02 8:30:00,29 ,8.874952,111.8108,61.13951,21.40464
sgpcmbeC1.c1,2000,02 9:30:00,29 ,27.62595,217.6567,99.11979,48.33719
sgpcmbeC1.c1,2000,0210:30:00,29 , 61.6339, 327.438,147.2162,74.62145
sgpcmbeC1.c1,2000,0211:30:00,29 ,67.29084,384.3968,173.4237,88.03399
sgpcmbeC1.c1,2000,0212:30:00,29 ,68.71602,381.2563,190.9451,98.02694
sgpcmbeC1.c1,2000,0213:30:00,29 ,62.22451,413.1637,185.9994,93.48542
sgpcmbeC1.c1,2000,0214:30:00,29 ,21.96822,315.5813,169.9854,82.92146
sgpcmbeC1.c1,2000,0215:30:00,29 ,51.40409,274.6209, 147.237,63.49514
sgpcmbeC1.c1,2000,0216:30:00,29 ,31.65668,176.9119,96.65982,40.65844
sgpcmbeC1.c1,2000,0217:30:00,29 ,5.737172,70.32106,39.31724,14.68977
sgpcmbeC1.c1,2000,0218:30:00,29 ,       0,9.138491,1.877337,  2.3398
sgpcmbeC1.c1,2000,0219:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0220:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0221:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0222:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0223:30:00,26 ,       0,       0,       0,       0