datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,01 0:30:00,25 ,       0,1.067006,0.047776, 0.21386
sgpcmbeC1.c1,2003,01 1:30:00,26 ,       0,0.282719,0.017773, 0.06316
sgpcmbeC1.c1,2003,01 2:30:00,21 ,       0, 0.68805, 0.08101,0.182944
sgpcmbeC1.c1,2003,01 3:30:00,27 ,       0,0.210566,0.012649,0.046642
sgpcmbeC1.c1,2003,01 4:30:00,26 ,       0,0.702372,0.054192,0.167683
sgpcmbeC1.c1,2003,01 5:30:00,30 ,       0,0.191595,0.008777,0.036925
sgpcmbeC1.c1,2003,01 6:30:00,31 ,       0,0.430021,0.018184,0.080112
sgpcmbeC1.c1,2003,01 7:30:00,31 ,0.234502,10.93255,4.580181,2.657341
sgpcmbeC1.c1,2003,01 8:30:00,31 ,10.76547,147.3961,88.95283,35.40559
sgpcmbeC1.c1,2003,01 9:30:00,31 ,32.59289,336.5799,222.0909,91.37449
sgpcmbeC1.c1,2003,0110:30:00,31 , 63.2845,494.1236,347.0792,137.0001
sgpcmbeC1.c1,2003,0111:30:00,31 ,86.18649,602.5099,433.5109,152.1909
sgpcmbeC1.c1,2003,0112:30:00,31 , 122.032,651.1356,459.0746, 157.784
sgpcmbeC1.c1,2003,0113:30:00,31 ,105.4564,632.9117,463.3577, 148.162
sgpcmbeC1.c1,2003,0114:30:00,31 ,82.78255,551.9913,393.6311,132.6053
sgpcmbeC1.c1,2003,0115:30:00,31 ,54.95129,394.7999,277.4824,108.9031
sgpcmbeC1.c1,2003,0116:30:00,31 , 27.5512,226.6722,135.8314,58.21614
sgpcmbeC1.c1,2003,0117:30:00,31 , 1.51027,50.47534,18.23797,12.36941
sgpcmbeC1.c1,2003,0118:30:00,31 ,       0,1.916426,0.401962,0.525055
sgpcmbeC1.c1,2003,0119:30:00,30 ,       0,0.563235,0.066645,0.140732
sgpcmbeC1.c1,2003,0120:30:00,27 ,       0,1.028293,0.080318,0.261722
sgpcmbeC1.c1,2003,0121:30:00,27 ,       0, 2.58289, 0.14264,0.515483
sgpcmbeC1.c1,2003,0122:30:00,24 ,       0,0.901875,0.122621,0.254177
sgpcmbeC1.c1,2003,0123:30:00,24 ,       0,1.583772,0.076213,0.322722