datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,10 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 5:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,10 6:30:00,31 ,       0,22.48853,7.063839,6.493204
sgpcmbeC1.c1,2006,10 7:30:00,31 ,4.024715,89.53145,39.67881,20.27797
sgpcmbeC1.c1,2006,10 8:30:00,31 ,6.014511,106.0248,51.38956,  23.153
sgpcmbeC1.c1,2006,10 9:30:00,31 ,5.078971, 149.705,54.73554,31.92727
sgpcmbeC1.c1,2006,1010:30:00,31 ,15.02604,203.6624,  66.097,50.48022
sgpcmbeC1.c1,2006,1011:30:00,31 ,12.53056,195.6816,44.02342,45.86628
sgpcmbeC1.c1,2006,1012:30:00,31 ,2.149861,206.7144,44.62985,57.73485
sgpcmbeC1.c1,2006,1013:30:00,31 ,11.19858,230.3332,  58.737,57.51106
sgpcmbeC1.c1,2006,1014:30:00,31 ,19.49479,174.6024,60.91037,39.10361
sgpcmbeC1.c1,2006,1015:30:00,31 ,13.89852,117.6147,63.62074,26.65428
sgpcmbeC1.c1,2006,1016:30:00,31 ,4.641399,81.71233,50.82731,18.39653
sgpcmbeC1.c1,2006,1017:30:00,31 ,3.716908,54.66233,28.05691,15.03361
sgpcmbeC1.c1,2006,1018:30:00,29 ,       0, 7.79001,0.732337, 1.75427
sgpcmbeC1.c1,2006,1019:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1020:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1021:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1022:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1023:30:00,29 ,       0,       0,       0,       0