datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,07 0:30:00,30 ,       0,247.8087,24.03975,51.06853
sgpcmbeC1.c1,2004,07 1:30:00,30 ,       0,198.7015,28.22275,49.11561
sgpcmbeC1.c1,2004,07 2:30:00,29 ,       0,138.0667,28.47705,41.60266
sgpcmbeC1.c1,2004,07 3:30:00,30 ,       0,195.2936,25.52807,45.34385
sgpcmbeC1.c1,2004,07 4:30:00,28 ,       0,238.2254,37.18155,59.46937
sgpcmbeC1.c1,2004,07 5:30:00,28 ,       0,206.5697,25.26836,45.33927
sgpcmbeC1.c1,2004,07 6:30:00,29 ,       0,217.4671,21.99877, 44.8796
sgpcmbeC1.c1,2004,07 7:30:00,30 ,       0,241.6212,31.94998,62.71273
sgpcmbeC1.c1,2004,07 8:30:00,29 ,       0,132.3275, 20.8942,36.76571
sgpcmbeC1.c1,2004,07 9:30:00,30 ,       0,112.3691,25.36594,38.29105
sgpcmbeC1.c1,2004,0710:30:00,30 ,       0,101.3235,18.07846,29.72063
sgpcmbeC1.c1,2004,0711:30:00,30 ,       0,205.3059,18.26125,42.16158
sgpcmbeC1.c1,2004,0712:30:00,30 ,       0,261.0002,18.73131,49.94908
sgpcmbeC1.c1,2004,0713:30:00,30 ,       0,210.4625,19.73803,41.41022
sgpcmbeC1.c1,2004,0714:30:00,30 ,       0,214.8399,24.74705,47.73591
sgpcmbeC1.c1,2004,0715:30:00,29 ,       0,89.57328,9.765886,19.09711
sgpcmbeC1.c1,2004,0716:30:00,29 ,       0,  154.54,15.93761,34.94546
sgpcmbeC1.c1,2004,0717:30:00,30 ,       0, 207.492, 15.9866,39.22497
sgpcmbeC1.c1,2004,0718:30:00,29 ,       0,166.3053,14.39718,37.07948
sgpcmbeC1.c1,2004,0719:30:00,30 ,       0,244.6511, 22.6968,58.69195
sgpcmbeC1.c1,2004,0720:30:00,30 ,       0,176.8791,18.59918,36.51873
sgpcmbeC1.c1,2004,0721:30:00,29 ,       0,132.0387,12.69774,26.89193
sgpcmbeC1.c1,2004,0722:30:00,29 ,       0,181.0688,25.25315, 47.2438
sgpcmbeC1.c1,2004,0723:30:00,29 ,       0,168.4275,15.09812,33.58385