datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,10 0:30:00,30 ,       0, 0.71434,0.023811, 0.13042
sgpcmbeC1.c1,2002,10 1:30:00,30 ,       0,1.621511, 0.05405,0.296046
sgpcmbeC1.c1,2002,10 2:30:00,31 ,       0,0.403659,0.013021,0.072499
sgpcmbeC1.c1,2002,10 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 6:30:00,31 ,       0,7.862717,0.652985,1.906568
sgpcmbeC1.c1,2002,10 7:30:00,31 ,       0,134.0793, 21.0536,39.18695
sgpcmbeC1.c1,2002,10 8:30:00,31 ,       0,333.6541,67.82227,109.4887
sgpcmbeC1.c1,2002,10 9:30:00,31 ,       0,511.1017,114.3648,183.7825
sgpcmbeC1.c1,2002,1010:30:00,31 ,       0,646.7462, 182.571,246.4498
sgpcmbeC1.c1,2002,1011:30:00,31 ,0.146065, 728.318,231.9771,296.2257
sgpcmbeC1.c1,2002,1012:30:00,31 ,0.033127,742.6851,239.7717,292.7854
sgpcmbeC1.c1,2002,1013:30:00,31 ,0.003532,694.0634,227.2057,277.0216
sgpcmbeC1.c1,2002,1014:30:00,31 ,       0,588.8313,197.0009,236.7567
sgpcmbeC1.c1,2002,1015:30:00,31 ,       0,432.7375,141.4497,169.0436
sgpcmbeC1.c1,2002,1016:30:00,31 ,       0,245.4804,71.73803,91.14389
sgpcmbeC1.c1,2002,1017:30:00,31 ,       0,64.68278,14.15064,19.51567
sgpcmbeC1.c1,2002,1018:30:00,31 ,       0,3.118402,0.348617,0.765139
sgpcmbeC1.c1,2002,1019:30:00,31 ,       0,1.133317,0.078327,0.254084
sgpcmbeC1.c1,2002,1020:30:00,31 ,       0,1.024599, 0.03829,0.185357
sgpcmbeC1.c1,2002,1021:30:00,31 ,       0,0.051571,0.001664,0.009262
sgpcmbeC1.c1,2002,1022:30:00,31 ,       0,0.967659,0.031215,0.173797
sgpcmbeC1.c1,2002,1023:30:00,30 ,       0,       0,       0,       0