datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,05 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 5:30:00,29 ,       0, 28.0167,7.976064,7.916969
sgpcmbeC1.c1,2007,05 6:30:00,29 ,  0.2417,185.3039,68.91081,57.55229
sgpcmbeC1.c1,2007,05 7:30:00,29 ,6.030356,388.7675,164.0273,131.0762
sgpcmbeC1.c1,2007,05 8:30:00,29 ,25.69073,586.3777,283.1816,208.9847
sgpcmbeC1.c1,2007,05 9:30:00,29 ,56.75519,756.3831,369.3822, 246.679
sgpcmbeC1.c1,2007,0510:30:00,29 ,44.72629,901.1621, 509.607,273.5752
sgpcmbeC1.c1,2007,0511:30:00,29 ,143.6181,972.9404,634.8424,   271.3
sgpcmbeC1.c1,2007,0512:30:00,29 ,76.63441,1021.444,662.8116,275.4471
sgpcmbeC1.c1,2007,0513:30:00,30 ,42.76846,968.8447,669.1379,270.1944
sgpcmbeC1.c1,2007,0514:30:00,30 ,91.25362,868.7062,581.9892,254.1137
sgpcmbeC1.c1,2007,0515:30:00,30 ,75.28223,718.4337,498.5691,191.9775
sgpcmbeC1.c1,2007,0516:30:00,30 ,42.85218,524.7209,351.3829,133.8516
sgpcmbeC1.c1,2007,0517:30:00,30 ,40.19938,336.0866,216.2394,88.66488
sgpcmbeC1.c1,2007,0518:30:00,30 ,14.67507,155.7749,81.34698,40.75465
sgpcmbeC1.c1,2007,0519:30:00,30 ,       0,18.90223,6.766825,4.507073
sgpcmbeC1.c1,2007,0520:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0521:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0522:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0523:30:00,26 ,       0,       0,       0,       0