datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,06 1:30:00,27 ,       0,0.316249,0.011713,0.060862
sgpcmbeC1.c1,2005,06 2:30:00,27 ,       0,0.240009,0.008889, 0.04619
sgpcmbeC1.c1,2005,06 3:30:00,27 ,       0,0.735538,0.027242,0.141554
sgpcmbeC1.c1,2005,06 4:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,06 5:30:00,27 ,       0,8.322001, 4.71967,2.436182
sgpcmbeC1.c1,2005,06 6:30:00,27 ,0.513627,25.05789,11.74738,5.405466
sgpcmbeC1.c1,2005,06 7:30:00,27 ,0.864833,28.78615,12.48942,6.714126
sgpcmbeC1.c1,2005,06 8:30:00,28 ,4.350462,53.77026,14.80947,10.61884
sgpcmbeC1.c1,2005,06 9:30:00,28 ,3.880525,44.19515, 13.8137,11.77542
sgpcmbeC1.c1,2005,0610:30:00,28 ,2.411744,42.82517,16.14938,  13.727
sgpcmbeC1.c1,2005,0611:30:00,28 ,0.820072,53.21346,18.75135, 17.7269
sgpcmbeC1.c1,2005,0612:30:00,27 ,0.355387,52.02338,18.58023,18.41781
sgpcmbeC1.c1,2005,0613:30:00,27 , 0.83135,60.59247,22.24868,19.66948
sgpcmbeC1.c1,2005,0614:30:00,27 , 2.16049,60.73529,20.51933,17.38881
sgpcmbeC1.c1,2005,0615:30:00,27 ,4.144723,45.78117,17.15182,13.33558
sgpcmbeC1.c1,2005,0616:30:00,27 ,3.027514,42.75581,16.23601,12.58667
sgpcmbeC1.c1,2005,0617:30:00,27 ,3.044752,31.38329,12.11379,5.960215
sgpcmbeC1.c1,2005,0618:30:00,27 , 0.86638,18.07787,10.02968, 3.90021
sgpcmbeC1.c1,2005,0619:30:00,27 ,       0,9.579773, 5.23092,2.517993
sgpcmbeC1.c1,2005,0620:30:00,27 ,       0, 0.01291,0.000478,0.002484
sgpcmbeC1.c1,2005,0621:30:00,27 ,       0,0.035991,0.001333,0.006926
sgpcmbeC1.c1,2005,0622:30:00,27 ,       0,0.330172,0.021261,0.077531
sgpcmbeC1.c1,2005,0623:30:00,27 ,       0,0.335129,0.030648,0.090693