datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,07 0:30:00,31 ,       0,0.641694,0.045248,0.136143
sgpcmbeC1.c1,2007,07 1:30:00,31 ,       0,0.537673,0.038686,0.113535
sgpcmbeC1.c1,2007,07 2:30:00,31 ,       0,0.306014,0.021002,0.063559
sgpcmbeC1.c1,2007,07 3:30:00,31 ,       0,0.545635,0.018074,0.097946
sgpcmbeC1.c1,2007,07 4:30:00,31 ,       0, 0.71704,0.025271,0.128938
sgpcmbeC1.c1,2007,07 5:30:00,31 ,0.037945,27.54492,10.08128,6.621068
sgpcmbeC1.c1,2007,07 6:30:00,31 ,0.789434,163.3559,90.14273,46.19765
sgpcmbeC1.c1,2007,07 7:30:00,31 ,11.90903,358.3063,213.9286, 115.916
sgpcmbeC1.c1,2007,07 8:30:00,31 ,22.11137,576.8235,399.6874,162.7374
sgpcmbeC1.c1,2007,07 9:30:00,31 ,139.3646,724.9025, 560.848,182.9585
sgpcmbeC1.c1,2007,0710:30:00,31 ,205.2625,876.1211,676.6029,206.3526
sgpcmbeC1.c1,2007,0711:30:00,31 ,182.3682,973.5898,674.6724,231.2321
sgpcmbeC1.c1,2007,0712:30:00,31 ,271.2874,1007.531,704.2931,249.8291
sgpcmbeC1.c1,2007,0713:30:00,31 ,55.88988,964.0381,642.5101,273.2651
sgpcmbeC1.c1,2007,0714:30:00,30 ,30.17346, 885.887,618.9769,233.8557
sgpcmbeC1.c1,2007,0715:30:00,31 ,62.45423,785.8616,554.9781, 216.368
sgpcmbeC1.c1,2007,0716:30:00,31 ,115.6609,594.1772,428.3415, 137.987
sgpcmbeC1.c1,2007,0717:30:00,31 ,97.40477,380.1572,296.5135,82.13054
sgpcmbeC1.c1,2007,0718:30:00,31 ,43.39297,221.2224,141.2261,45.44862
sgpcmbeC1.c1,2007,0719:30:00,31 ,4.371878,36.92993,22.20097,9.595778
sgpcmbeC1.c1,2007,0720:30:00,30 ,       0,0.855243, 0.13146,  0.1982
sgpcmbeC1.c1,2007,0721:30:00,31 ,       0,0.793538,0.048336, 0.15059
sgpcmbeC1.c1,2007,0722:30:00,31 ,       0,0.404017,0.028776,0.096255
sgpcmbeC1.c1,2007,0723:30:00,31 ,       0,0.502863, 0.03397,0.102169