datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,08 0:30:00,31 ,       0, 0.08004,0.002582,0.014376
sgpcmbeC1.c1,1997,08 1:30:00,31 ,       0,0.026705,0.000865,0.004796
sgpcmbeC1.c1,1997,08 2:30:00,31 ,       0,0.000101,6.436E-6,0.000025
sgpcmbeC1.c1,1997,08 3:30:00,31 ,       0,0.017411,0.001006,0.003923
sgpcmbeC1.c1,1997,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,08 5:30:00,31 ,       0,1.649463,0.252105,0.377216
sgpcmbeC1.c1,1997,08 6:30:00,31 ,0.119143,28.39868,13.99345,9.446235
sgpcmbeC1.c1,1997,08 7:30:00,31 , 2.05405,74.98697,45.11135,26.73424
sgpcmbeC1.c1,1997,08 8:30:00,31 ,7.172707,112.0399,76.77114,38.15835
sgpcmbeC1.c1,1997,08 9:30:00,31 , 4.72619,149.3165,105.6104,44.37469
sgpcmbeC1.c1,1997,0810:30:00,31 ,12.56458,181.8025,125.4957,42.37761
sgpcmbeC1.c1,1997,0811:30:00,31 ,8.833541,182.4503,141.3741,40.80414
sgpcmbeC1.c1,1997,0812:30:00,31 ,9.616499,183.0468,143.9421,44.80383
sgpcmbeC1.c1,1997,0813:30:00,31 ,11.30223,182.2315, 134.977,46.08233
sgpcmbeC1.c1,1997,0814:30:00,31 ,3.251815,166.3918,127.0964,39.69262
sgpcmbeC1.c1,1997,0815:30:00,31 ,6.224346,148.6273,109.1055, 37.4303
sgpcmbeC1.c1,1997,0816:30:00,31 ,11.19966,115.9523,87.74465,29.27359
sgpcmbeC1.c1,1997,0817:30:00,31 ,4.965619,85.53043,56.35761,20.71981
sgpcmbeC1.c1,1997,0818:30:00,31 ,2.380558,33.25015, 20.0964,7.884105
sgpcmbeC1.c1,1997,0819:30:00,31 ,       0,3.049356,0.816634,0.960087
sgpcmbeC1.c1,1997,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0821:30:00,31 ,       0,0.001979,0.000064,0.000355
sgpcmbeC1.c1,1997,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0823:30:00,31 ,       0,       0,       0,       0