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 ,       0,64.67477,22.61914,17.29092
sgpcmbeC1.c1,2000,02 8:30:00,29 ,8.957491,266.0232, 149.251,67.98535
sgpcmbeC1.c1,2000,02 9:30:00,29 ,27.70415,463.5093,303.8443,125.8548
sgpcmbeC1.c1,2000,0210:30:00,29 ,82.74779,619.4549,457.5846,149.9944
sgpcmbeC1.c1,2000,0211:30:00,29 ,89.75689,723.1829,546.7567, 174.642
sgpcmbeC1.c1,2000,0212:30:00,29 ,157.5267,769.6404,571.1764,180.2824
sgpcmbeC1.c1,2000,0213:30:00,29 ,111.2003,753.0872,542.1592,190.9067
sgpcmbeC1.c1,2000,0214:30:00,29 ,21.96822,666.4297,480.8225,173.2353
sgpcmbeC1.c1,2000,0215:30:00,29 , 62.7174,521.4432,351.7441,128.0059
sgpcmbeC1.c1,2000,0216:30:00,29 ,31.68032,337.8444,217.3004,86.76542
sgpcmbeC1.c1,2000,0217:30:00,29 ,5.737201, 138.188,69.66186,35.67367
sgpcmbeC1.c1,2000,0218:30:00,29 ,       0,14.06247,  2.2972,3.273038
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