datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 5:30:00,31 ,       0,8.180255,2.381608, 2.11798
sgpcmbeC1.c1,2003,08 6:30:00,31 , 2.57316,38.19985,19.90787,7.350911
sgpcmbeC1.c1,2003,08 7:30:00,31 ,5.221489,45.77348,20.34491,11.09539
sgpcmbeC1.c1,2003,08 8:30:00,31 ,4.513016,59.27293, 21.1869,16.17687
sgpcmbeC1.c1,2003,08 9:30:00,31 ,2.782759,65.70905,20.65659,18.54605
sgpcmbeC1.c1,2003,0810:30:00,31 ,1.870469,170.7883,32.22392,37.78374
sgpcmbeC1.c1,2003,0811:30:00,31 ,0.941146,137.3377,36.55591,37.47843
sgpcmbeC1.c1,2003,0812:30:00,31 ,3.982766,169.0998,42.86199,38.46896
sgpcmbeC1.c1,2003,0813:30:00,31 ,4.030372,169.7579,52.35896,44.30343
sgpcmbeC1.c1,2003,0814:30:00,31 ,4.341778,149.0613,45.29143, 39.1196
sgpcmbeC1.c1,2003,0815:30:00,31 ,2.342386,114.6407,43.46493,33.07262
sgpcmbeC1.c1,2003,0816:30:00,31 ,3.371321,78.32719,31.27288, 20.6973
sgpcmbeC1.c1,2003,0817:30:00,31 ,1.878215,39.47873,18.89286,9.892692
sgpcmbeC1.c1,2003,0818:30:00,31 ,4.878013,51.93456,17.87135,8.981402
sgpcmbeC1.c1,2003,0819:30:00,29 ,       0,10.64451,4.803335, 3.49335
sgpcmbeC1.c1,2003,0820:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0823:30:00,31 ,       0,       0,       0,       0