datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,09 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 3:30:00,28 ,       0,0.082239,0.003906,0.016074
sgpcmbeC1.c1,1997,09 4:30:00,28 ,       0, 0.12633,0.005508,0.023959
sgpcmbeC1.c1,1997,09 5:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 6:30:00,28 ,       0,26.76546,5.615229, 7.49922
sgpcmbeC1.c1,1997,09 7:30:00,29 ,       0,181.7914,59.56005,62.11052
sgpcmbeC1.c1,1997,09 8:30:00,28 ,       0,379.6806,150.6314,136.8859
sgpcmbeC1.c1,1997,09 9:30:00,28 ,       0,558.2167,219.2065, 209.671
sgpcmbeC1.c1,1997,0910:30:00,28 ,0.010559,685.6816,302.0743,253.7401
sgpcmbeC1.c1,1997,0911:30:00,28 ,0.881867,784.1077,357.9795,309.9846
sgpcmbeC1.c1,1997,0912:30:00,28 ,0.238396,817.1398,408.6418,322.2615
sgpcmbeC1.c1,1997,0913:30:00,28 ,0.280083,785.4362,402.7975,284.8628
sgpcmbeC1.c1,1997,0914:30:00,28 ,0.031479,692.7398,363.9647,252.0698
sgpcmbeC1.c1,1997,0915:30:00,27 ,       0,539.3342,273.1537,182.6533
sgpcmbeC1.c1,1997,0916:30:00,27 ,       0,349.0409, 174.348,128.6167
sgpcmbeC1.c1,1997,0917:30:00,27 ,       0,162.5192,63.71479,55.71175
sgpcmbeC1.c1,1997,0918:30:00,27 ,       0,21.78997,4.579015,6.130628
sgpcmbeC1.c1,1997,0919:30:00,27 ,       0,0.050044,0.001994,0.009623
sgpcmbeC1.c1,1997,0920:30:00,27 ,       0,0.009795,0.000363,0.001885
sgpcmbeC1.c1,1997,0921:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0922:30:00,27 ,       0, 0.01472,0.000545,0.002833
sgpcmbeC1.c1,1997,0923:30:00,27 ,       0,       0,       0,       0