datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,06 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,06 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,06 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,06 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,06 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,06 5:30:00,29 ,       0,28.02132,16.86003,5.790479
sgpcmbeC1.c1,2002,06 6:30:00,29 ,12.04376,111.2407,66.91239,21.82411
sgpcmbeC1.c1,2002,06 7:30:00,29 ,4.277736,195.5933,110.1655,46.32944
sgpcmbeC1.c1,2002,06 8:30:00,29 ,2.769383,285.0803,159.1734,66.82868
sgpcmbeC1.c1,2002,06 9:30:00,29 ,10.98422,403.9921,189.4115, 80.7424
sgpcmbeC1.c1,2002,0610:30:00,29 ,78.87207,431.0074,232.1923,103.0732
sgpcmbeC1.c1,2002,0611:30:00,29 ,89.28041,554.7726,254.2019, 121.051
sgpcmbeC1.c1,2002,0612:30:00,29 ,91.82313,533.3874,274.4127,113.4098
sgpcmbeC1.c1,2002,0613:30:00,29 ,17.13226, 562.227, 259.712,118.2823
sgpcmbeC1.c1,2002,0614:30:00,29 ,2.354628, 484.296,222.0671,108.5989
sgpcmbeC1.c1,2002,0615:30:00,29 ,11.23528,363.9027,200.9512,84.39009
sgpcmbeC1.c1,2002,0616:30:00,29 ,6.810441,312.4212,165.1514,67.93071
sgpcmbeC1.c1,2002,0617:30:00,29 ,22.31481,176.5563,112.2023,43.07471
sgpcmbeC1.c1,2002,0618:30:00,29 ,       0,124.7019,66.87046,27.72234
sgpcmbeC1.c1,2002,0619:30:00,29 ,       0, 34.2051,16.64282, 7.54193
sgpcmbeC1.c1,2002,0620:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0621:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0622:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0623:30:00,29 ,       0,       0,       0,       0