datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,09 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 1:30:00,27 ,       0,0.180902,  0.0067,0.034815
sgpcmbeC1.c1,1998,09 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 3:30:00,27 ,       0,0.191131,0.007079,0.036783
sgpcmbeC1.c1,1998,09 4:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 6:30:00,28 ,0.026632,24.31139,8.285756,7.058041
sgpcmbeC1.c1,1998,09 7:30:00,28 ,0.081841,100.2218,37.17518,22.46601
sgpcmbeC1.c1,1998,09 8:30:00,28 , 0.04467,103.5754,46.57709,24.94507
sgpcmbeC1.c1,1998,09 9:30:00,28 ,0.176153,140.0742,49.53132,29.04497
sgpcmbeC1.c1,1998,0910:30:00,28 , 0.42905,245.5237,64.63285,68.37044
sgpcmbeC1.c1,1998,0911:30:00,28 ,0.332474,290.7634,90.79907,85.50888
sgpcmbeC1.c1,1998,0912:30:00,28 ,0.518632,285.8605,105.8284,105.4394
sgpcmbeC1.c1,1998,0913:30:00,28 ,0.259922,299.2685,114.6394,109.3255
sgpcmbeC1.c1,1998,0914:30:00,28 ,0.404129, 261.549,108.4642,83.02257
sgpcmbeC1.c1,1998,0915:30:00,28 ,0.376168,185.1312,74.46411,61.83288
sgpcmbeC1.c1,1998,0916:30:00,28 ,0.071781,140.2535,60.54137,35.90868
sgpcmbeC1.c1,1998,0917:30:00,28 ,0.038748,88.04661,37.65616, 23.0533
sgpcmbeC1.c1,1998,0918:30:00,28 ,       0,22.30213,5.866024,6.665679
sgpcmbeC1.c1,1998,0919:30:00,28 ,       0,0.430162,0.015363,0.081293
sgpcmbeC1.c1,1998,0920:30:00,27 ,       0,0.052997,0.001963,0.010199
sgpcmbeC1.c1,1998,0921:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0922:30:00,27 ,       0, 0.19029,0.007048,0.036621
sgpcmbeC1.c1,1998,0923:30:00,26 ,       0,       0,       0,       0