datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,10 0:30:00,31 ,       0,0.022876,0.000738,0.004109
sgpcmbeC1.c1,1998,10 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 2:30:00,31 ,       0,0.326985,0.010548,0.058728
sgpcmbeC1.c1,1998,10 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 4:30:00,31 ,       0,0.070422,0.002272,0.012648
sgpcmbeC1.c1,1998,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,10 6:30:00,31 ,       0, 9.24174,1.507271,2.539877
sgpcmbeC1.c1,1998,10 7:30:00,31 ,0.010052,65.43992,24.05002,20.27108
sgpcmbeC1.c1,1998,10 8:30:00,31 ,0.045655,83.32603,37.66566,29.82301
sgpcmbeC1.c1,1998,10 9:30:00,31 ,0.047267,113.5667,39.86851,35.42206
sgpcmbeC1.c1,1998,1010:30:00,31 ,0.013949,197.4687,47.80836,51.63573
sgpcmbeC1.c1,1998,1011:30:00,31 ,0.222097,173.4554,37.81351,49.00769
sgpcmbeC1.c1,1998,1012:30:00,31 ,       0,181.0711,48.94673,62.20818
sgpcmbeC1.c1,1998,1013:30:00,31 ,0.031113,211.6944,59.14861,59.12024
sgpcmbeC1.c1,1998,1014:30:00,31 ,0.017749,180.3584, 60.4746,57.46251
sgpcmbeC1.c1,1998,1015:30:00,31 ,       0,134.4366,45.66015,38.54123
sgpcmbeC1.c1,1998,1016:30:00,31 ,0.008129,74.78381, 35.4469,24.21963
sgpcmbeC1.c1,1998,1017:30:00,31 ,       0,41.54336,14.20171,13.46691
sgpcmbeC1.c1,1998,1018:30:00,31 ,       0,0.790465,0.039651,0.146298
sgpcmbeC1.c1,1998,1019:30:00,31 ,       0,0.088345,0.002896,0.015861
sgpcmbeC1.c1,1998,1020:30:00,31 ,       0,0.308759,0.014526,0.060229
sgpcmbeC1.c1,1998,1021:30:00,31 ,       0,0.277545,0.014541,0.057875
sgpcmbeC1.c1,1998,1022:30:00,31 ,       0, 0.36476,0.019446,0.077029
sgpcmbeC1.c1,1998,1023:30:00,31 ,       0, 0.52629,0.016977,0.094525