datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,07 0:30:00,31 ,       0,0.054442,0.001788,0.009774
sgpcmbeC1.c1,1997,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,07 3:30:00,31 ,       0,0.044023, 0.00142,0.007907
sgpcmbeC1.c1,1997,07 4:30:00,31 ,       0,0.004604,0.000149,0.000827
sgpcmbeC1.c1,1997,07 5:30:00,31 ,0.003179, 9.30254,1.833116,2.549609
sgpcmbeC1.c1,1997,07 6:30:00,31 ,0.024134,115.4587,43.46023,38.15662
sgpcmbeC1.c1,1997,07 7:30:00,31 ,0.023956,291.8014,140.8798,102.4893
sgpcmbeC1.c1,1997,07 8:30:00,31 ,0.030266, 478.998,275.0258,180.8452
sgpcmbeC1.c1,1997,07 9:30:00,31 ,0.109478,641.3522,406.1484,246.5671
sgpcmbeC1.c1,1997,0710:30:00,31 ,0.374249,772.2141,482.6695,278.0986
sgpcmbeC1.c1,1997,0711:30:00,31 ,1.680908,867.4771, 553.816,290.4223
sgpcmbeC1.c1,1997,0712:30:00,31 ,4.278168,908.9089,  582.05,334.6183
sgpcmbeC1.c1,1997,0713:30:00,31 ,1.528809, 889.582,569.2353,285.5429
sgpcmbeC1.c1,1997,0714:30:00,31 ,0.609863,807.4128, 522.492,276.5421
sgpcmbeC1.c1,1997,0715:30:00,31 ,0.163872,685.4432,440.9785,217.0641
sgpcmbeC1.c1,1997,0716:30:00,31 ,0.010708,516.1725,349.5768, 164.166
sgpcmbeC1.c1,1997,0717:30:00,31 , 0.20608,323.0035, 195.377,107.3347
sgpcmbeC1.c1,1997,0718:30:00,31 , 0.01403,140.1311,70.20587,45.06924
sgpcmbeC1.c1,1997,0719:30:00,31 ,       0,17.03303,  5.3341,4.714131
sgpcmbeC1.c1,1997,0720:30:00,31 ,       0,0.002009, 0.00012,0.000467
sgpcmbeC1.c1,1997,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0722:30:00,31 ,       0,0.016474,0.000531,0.002959
sgpcmbeC1.c1,1997,0723:30:00,31 ,       0,0.015844,0.000511,0.002846