datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,09 6:30:00,30 ,       0,31.23074,7.155127,8.384724
sgpcmbeC1.c1,1999,09 7:30:00,30 ,0.000379,187.2343,71.32708,65.84043
sgpcmbeC1.c1,1999,09 8:30:00,30 ,0.046455,383.0315, 165.877, 148.487
sgpcmbeC1.c1,1999,09 9:30:00,30 ,0.059418,555.7499,269.0266,209.1506
sgpcmbeC1.c1,1999,0910:30:00,30 ,0.071228,692.0308,347.4932,278.7321
sgpcmbeC1.c1,1999,0911:30:00,30 , 0.15802,779.5892,369.0846,304.2347
sgpcmbeC1.c1,1999,0912:30:00,30 ,0.384224,804.5911,380.0695,322.0273
sgpcmbeC1.c1,1999,0913:30:00,30 ,0.054451,766.0336,345.2285,293.9941
sgpcmbeC1.c1,1999,0914:30:00,30 ,0.132004,665.3174,330.7174,240.4274
sgpcmbeC1.c1,1999,0915:30:00,30 , 0.08593,528.7402, 263.722,191.4265
sgpcmbeC1.c1,1999,0916:30:00,30 ,       0,336.8045,159.9839, 117.537
sgpcmbeC1.c1,1999,0917:30:00,30 ,       0,146.7888,53.26255,45.15802
sgpcmbeC1.c1,1999,0918:30:00,30 ,       0,20.45574, 4.33115,5.925424
sgpcmbeC1.c1,1999,0919:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0923:30:00,30 ,       0,       0,       0,       0