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 ,       0,0.033812,0.001252,0.006507
sgpcmbeC1.c1,1998,09 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,09 3:30:00,27 ,       0, 0.08865,0.003283,0.017061
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 ,0.885184,35.94744,19.01937,8.525173
sgpcmbeC1.c1,1998,09 7:30:00,28 ,34.84951,124.4128,75.31224,22.81196
sgpcmbeC1.c1,1998,09 8:30:00,28 ,6.791768,194.8508,120.2365,39.19409
sgpcmbeC1.c1,1998,09 9:30:00,28 ,13.11775,303.1133,155.3034, 68.1619
sgpcmbeC1.c1,1998,0910:30:00,28 , 75.6096,393.6417,192.4003,84.38714
sgpcmbeC1.c1,1998,0911:30:00,28 ,43.96304,456.2864,211.4978,102.0924
sgpcmbeC1.c1,1998,0912:30:00,28 ,88.83944,472.7404,220.6444,89.90733
sgpcmbeC1.c1,1998,0913:30:00,28 ,87.88225,354.9231,201.0203, 65.8296
sgpcmbeC1.c1,1998,0914:30:00,28 ,83.92604,347.6069,185.9196,58.40303
sgpcmbeC1.c1,1998,0915:30:00,28 ,77.68429,236.1603,149.1866,39.49144
sgpcmbeC1.c1,1998,0916:30:00,28 ,67.58192,166.5218,114.0538,30.08143
sgpcmbeC1.c1,1998,0917:30:00,28 ,17.01155,107.2342,63.56251,24.61266
sgpcmbeC1.c1,1998,0918:30:00,28 ,       0,30.74947,13.03752,9.513048
sgpcmbeC1.c1,1998,0919:30:00,28 ,       0,0.185809,0.006636,0.035115
sgpcmbeC1.c1,1998,0920:30:00,27 ,       0,0.068824,0.002549,0.013245
sgpcmbeC1.c1,1998,0921:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0922:30:00,27 ,       0,0.170291,0.006307,0.032772
sgpcmbeC1.c1,1998,0923:30:00,26 ,       0,       0,       0,       0