datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 5:30:00,31 ,       0,21.68364, 8.48961,5.259618
sgpcmbeC1.c1,2000,07 6:30:00,31 ,8.422296, 102.894,54.94221,26.95238
sgpcmbeC1.c1,2000,07 7:30:00,31 ,10.74587,207.0441,103.4135,53.57416
sgpcmbeC1.c1,2000,07 8:30:00,31 ,2.636166,255.7752,137.7837,57.02705
sgpcmbeC1.c1,2000,07 9:30:00,31 ,10.82952,349.9591,183.4774,83.42374
sgpcmbeC1.c1,2000,0710:30:00,31 ,85.23815,459.6207,208.2456,97.67507
sgpcmbeC1.c1,2000,0711:30:00,31 ,74.49809,474.5221,216.9734,106.7653
sgpcmbeC1.c1,2000,0712:30:00,31 ,89.94614,441.8187,213.2403,94.79099
sgpcmbeC1.c1,2000,0713:30:00,31 ,95.11632,501.7484,220.3782,101.1439
sgpcmbeC1.c1,2000,0714:30:00,31 ,96.85247,386.1462,183.5187,68.26064
sgpcmbeC1.c1,2000,0715:30:00,31 ,36.35279,323.4372,163.7675,62.46679
sgpcmbeC1.c1,2000,0716:30:00,31 ,74.26431,319.6778,141.3015,48.05849
sgpcmbeC1.c1,2000,0717:30:00,31 ,65.96387, 231.198,114.3869,33.73188
sgpcmbeC1.c1,2000,0718:30:00,31 ,46.38305,154.6617,68.97705,19.01607
sgpcmbeC1.c1,2000,0719:30:00,31 ,1.337986,27.64328,17.01537,6.406762
sgpcmbeC1.c1,2000,0720:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0723:30:00,31 ,       0,       0,       0,       0