datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 5:30:00,31 ,       0,0.571313,0.047822,0.108292
sgpcmbeC1.c1,2003,08 6:30:00,31 ,0.018887,59.54615,20.63462, 17.8089
sgpcmbeC1.c1,2003,08 7:30:00,31 ,0.053421,  219.25,106.0981,70.18271
sgpcmbeC1.c1,2003,08 8:30:00,31 ,0.132217,397.5566,235.2947,129.1858
sgpcmbeC1.c1,2003,08 9:30:00,31 ,0.408844,556.1125,355.2093, 199.037
sgpcmbeC1.c1,2003,0810:30:00,31 ,0.221916,688.2311,474.4608,219.8688
sgpcmbeC1.c1,2003,0811:30:00,31 ,1.414856,773.8665,510.0378,271.5054
sgpcmbeC1.c1,2003,0812:30:00,31 , 3.03273,810.8835,513.3157, 262.877
sgpcmbeC1.c1,2003,0813:30:00,31 ,0.746796,797.3472,490.9659,256.7299
sgpcmbeC1.c1,2003,0814:30:00,31 ,0.086586,712.1342,411.5323,241.7981
sgpcmbeC1.c1,2003,0815:30:00,31 , 0.01944,594.7301,325.7722,194.9188
sgpcmbeC1.c1,2003,0816:30:00,31 ,0.643659,422.2838,232.3133,144.1965
sgpcmbeC1.c1,2003,0817:30:00,31 , 0.00069,249.2149,134.4724,84.30548
sgpcmbeC1.c1,2003,0818:30:00,31 ,       0,86.22452,37.36758,25.97086
sgpcmbeC1.c1,2003,0819:30:00,29 ,       0,4.187539,0.630732,0.942317
sgpcmbeC1.c1,2003,0820:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0823:30:00,31 ,       0,       0,       0,       0