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 ,       0,0.058682,0.002096, 0.01109
sgpcmbeC1.c1,1997,09 4:30:00,28 ,       0,0.108228,0.006421,0.024098
sgpcmbeC1.c1,1997,09 5:30:00,28 ,       0, 0.01515,0.000541,0.002863
sgpcmbeC1.c1,1997,09 6:30:00,28 ,       0,17.20992,6.599453,5.126748
sgpcmbeC1.c1,1997,09 7:30:00,27 , 3.28079,73.16074,37.13691,19.80935
sgpcmbeC1.c1,1997,09 8:30:00,28 , 4.19146,111.8291,68.52544,32.43827
sgpcmbeC1.c1,1997,09 9:30:00,28 ,7.138617,145.2548,88.60476,45.73533
sgpcmbeC1.c1,1997,0910:30:00,28 , 7.36699,166.3766, 109.677,54.00131
sgpcmbeC1.c1,1997,0911:30:00,28 ,21.41486,177.5094,122.7716,51.05343
sgpcmbeC1.c1,1997,0912:30:00,28 ,19.75226,180.3335,128.9546,52.17615
sgpcmbeC1.c1,1997,0913:30:00,28 , 15.2042,174.0875,128.7795,48.92912
sgpcmbeC1.c1,1997,0914:30:00,28 ,22.73634, 161.517,120.1023,43.05637
sgpcmbeC1.c1,1997,0915:30:00,27 ,10.53196,136.9829,95.72274,38.43059
sgpcmbeC1.c1,1997,0916:30:00,27 ,6.307427,101.5983,66.46709, 30.4096
sgpcmbeC1.c1,1997,0917:30:00,27 ,2.034689,57.83474, 30.8579,17.71289
sgpcmbeC1.c1,1997,0918:30:00,27 ,       0,14.03037,4.492907,4.888787
sgpcmbeC1.c1,1997,0919:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0920:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0921:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0922:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0923:30:00,27 ,       0,       0,       0,       0