datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,09 5:30:00,30 ,       0,0.082204, 0.00274,0.015008
sgpcmbeC1.c1,2004,09 6:30:00,30 ,0.767138,11.05706,7.864512,2.741586
sgpcmbeC1.c1,2004,09 7:30:00,30 ,2.104538,21.63547,14.53875,3.509816
sgpcmbeC1.c1,2004,09 8:30:00,30 ,5.742763, 38.6855,13.23859,5.963325
sgpcmbeC1.c1,2004,09 9:30:00,30 ,7.167887,50.19887,13.49921,11.19416
sgpcmbeC1.c1,2004,0910:30:00,30 ,4.634159,52.30364,11.44301,10.47654
sgpcmbeC1.c1,2004,0911:30:00,30 ,1.777227, 62.3438,14.36237,16.81739
sgpcmbeC1.c1,2004,0912:30:00,30 ,0.570544,52.30898,14.73303,16.18232
sgpcmbeC1.c1,2004,0913:30:00,30 ,3.244335,70.91884,24.15556,23.23984
sgpcmbeC1.c1,2004,0914:30:00,30 ,3.813217,59.49927,   23.11, 17.0242
sgpcmbeC1.c1,2004,0915:30:00,30 ,6.615206,58.25125,20.13058,14.16908
sgpcmbeC1.c1,2004,0916:30:00,30 ,4.487473,41.97381,16.90456,7.636564
sgpcmbeC1.c1,2004,0917:30:00,30 ,4.725488,20.09973,13.14462,2.867944
sgpcmbeC1.c1,2004,0918:30:00,30 ,       0,10.01451,4.737784,3.230995
sgpcmbeC1.c1,2004,0919:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0923:30:00,30 ,       0,       0,       0,       0