datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,09 6:30:00,30 ,0.002771,28.17795,9.097678,6.922008
sgpcmbeC1.c1,2002,09 7:30:00,30 ,0.095037,171.7833,96.87514, 46.9753
sgpcmbeC1.c1,2002,09 8:30:00,30 ,0.166401,358.0342,234.7809,114.9667
sgpcmbeC1.c1,2002,09 9:30:00,30 ,0.668373,546.9962, 359.989,174.3754
sgpcmbeC1.c1,2002,0910:30:00,30 ,2.592285,693.1863, 494.563,195.0308
sgpcmbeC1.c1,2002,0911:30:00,30 ,6.711334,777.6461,559.5793,198.4803
sgpcmbeC1.c1,2002,0912:30:00,30 ,8.077454,797.4363,562.3236,210.5602
sgpcmbeC1.c1,2002,0913:30:00,30 ,0.357895,754.4602,526.5006,209.7085
sgpcmbeC1.c1,2002,0914:30:00,30 ,0.585907,653.0327,459.2932,183.8135
sgpcmbeC1.c1,2002,0915:30:00,30 ,       0,514.8082,338.3594,149.3869
sgpcmbeC1.c1,2002,0916:30:00,30 ,0.246765,338.8827,191.4993,104.7551
sgpcmbeC1.c1,2002,0917:30:00,30 ,       0, 142.678,69.77087,43.36863
sgpcmbeC1.c1,2002,0918:30:00,30 ,       0,14.75441,4.526481,4.459404
sgpcmbeC1.c1,2002,0919:30:00,29 ,       0,0.102979,0.005286,0.020982
sgpcmbeC1.c1,2002,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0923:30:00,27 ,       0,       0,       0,       0