datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,09 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 1:30:00,27 ,       0,0.023961,0.000887,0.004611
sgpcmbeC1.c1,1998,09 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 3:30:00,27 ,       0,0.032779,0.001214,0.006308
sgpcmbeC1.c1,1998,09 4:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 6:30:00,28 ,0.014842,22.73669,6.542611,6.565514
sgpcmbeC1.c1,1998,09 7:30:00,28 ,0.173267,166.5051,75.20954,51.09756
sgpcmbeC1.c1,1998,09 8:30:00,28 ,0.022328,355.6136,201.5143,109.7457
sgpcmbeC1.c1,1998,09 9:30:00,28 ,0.126951,535.3472,319.0166,174.5128
sgpcmbeC1.c1,1998,0910:30:00,28 ,0.322876,680.9772,396.0933,222.5738
sgpcmbeC1.c1,1998,0911:30:00,28 ,0.242577,768.7427,452.0295,238.1767
sgpcmbeC1.c1,1998,0912:30:00,28 ,0.614227,799.7033,491.8885,220.4952
sgpcmbeC1.c1,1998,0913:30:00,28 ,0.151123,763.9663,461.9062, 209.591
sgpcmbeC1.c1,1998,0914:30:00,28 , 0.87574,674.1465,363.5504, 200.285
sgpcmbeC1.c1,1998,0915:30:00,28 ,0.266541,528.9591,273.5596,164.0774
sgpcmbeC1.c1,1998,0916:30:00,28 ,0.208893,346.5901,181.0266,98.62396
sgpcmbeC1.c1,1998,0917:30:00,28 ,0.027336,153.4846,66.35258,45.02015
sgpcmbeC1.c1,1998,0918:30:00,28 ,       0,21.40715,4.438236,5.813761
sgpcmbeC1.c1,1998,0919:30:00,28 ,       0,0.125854,0.004495,0.023784
sgpcmbeC1.c1,1998,0920:30:00,27 ,       0,0.006842,0.000253,0.001317
sgpcmbeC1.c1,1998,0921:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0922:30:00,27 ,       0,0.035905, 0.00133, 0.00691
sgpcmbeC1.c1,1998,0923:30:00,26 ,       0,       0,       0,       0