datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,04 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,04 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,04 2:30:00,27 ,       0, 0.21468,0.007951,0.041315
sgpcmbeC1.c1,2004,04 3:30:00,27 ,       0,0.151867,0.009457,0.034728
sgpcmbeC1.c1,2004,04 4:30:00,28 ,       0,0.050858,0.001816,0.009611
sgpcmbeC1.c1,2004,04 5:30:00,28 ,       0, 1.03162,0.118875,0.259006
sgpcmbeC1.c1,2004,04 6:30:00,28 ,0.000012,71.27902,18.05316,21.83648
sgpcmbeC1.c1,2004,04 7:30:00,28 ,0.042728,244.7313,83.77049,88.30616
sgpcmbeC1.c1,2004,04 8:30:00,28 ,0.028461,427.0009,187.5224,171.4993
sgpcmbeC1.c1,2004,04 9:30:00,29 ,0.069042,599.4543,290.5461,252.7624
sgpcmbeC1.c1,2004,0410:30:00,29 ,0.055447,729.6667,394.4853,293.5717
sgpcmbeC1.c1,2004,0411:30:00,29 ,0.690201, 813.324,443.5447,329.8528
sgpcmbeC1.c1,2004,0412:30:00,29 , 0.47522,847.7709,440.9778,349.7082
sgpcmbeC1.c1,2004,0413:30:00,29 ,  0.7966, 811.019,389.0084, 338.364
sgpcmbeC1.c1,2004,0414:30:00,29 ,0.059082,724.1914,338.5225,296.9137
sgpcmbeC1.c1,2004,0415:30:00,29 ,0.067575, 594.475,268.8966,237.4625
sgpcmbeC1.c1,2004,0416:30:00,29 ,       0,417.7871,182.0082,156.1764
sgpcmbeC1.c1,2004,0417:30:00,29 ,       0, 244.306,86.34616,87.82612
sgpcmbeC1.c1,2004,0418:30:00,29 ,       0,63.06051,15.49504,18.86946
sgpcmbeC1.c1,2004,0419:30:00,29 ,       0,0.759414,0.090073,0.184962
sgpcmbeC1.c1,2004,0420:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0421:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0422:30:00,27 ,       0,0.480786,0.017807,0.092527
sgpcmbeC1.c1,2004,0423:30:00,27 ,       0,0.154536,0.005724,0.029741