datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 5:30:00,30 ,       0,6.157705,1.444953,1.988938
sgpcmbeC1.c1,2001,04 6:30:00,30 , 2.91245,35.09659,17.14177,7.444033
sgpcmbeC1.c1,2001,04 7:30:00,30 ,4.223423,72.76093,19.08681,16.46838
sgpcmbeC1.c1,2001,04 8:30:00,30 ,2.291053,107.1224,20.70759,24.05055
sgpcmbeC1.c1,2001,04 9:30:00,30 ,1.104408, 111.816,26.20444,29.83772
sgpcmbeC1.c1,2001,0410:30:00,30 ,0.682607,110.3651,30.10944,27.06224
sgpcmbeC1.c1,2001,0411:30:00,30 ,0.689862,102.1205,35.92054,30.68714
sgpcmbeC1.c1,2001,0412:30:00,30 ,0.740634, 141.598,43.92891,38.19458
sgpcmbeC1.c1,2001,0413:30:00,30 ,0.542177,148.4437,46.65464,36.05976
sgpcmbeC1.c1,2001,0414:30:00,30 ,0.546405,159.7578,44.34058,38.16796
sgpcmbeC1.c1,2001,0415:30:00,30 ,0.623501,90.94276,33.46664,26.70028
sgpcmbeC1.c1,2001,0416:30:00,30 ,2.326818,62.91133,22.83968,17.73084
sgpcmbeC1.c1,2001,0417:30:00,30 ,4.692577,56.11479,23.94909,16.14934
sgpcmbeC1.c1,2001,0418:30:00,30 ,8.385534,43.66911,20.54418,7.916479
sgpcmbeC1.c1,2001,0419:30:00,29 ,       0, 5.57533,1.276673,1.572643
sgpcmbeC1.c1,2001,0420:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0421:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0423:30:00,30 ,       0,       0,       0,       0