datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,09 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,09 6:30:00,30 ,       0,43.49283,22.09098,12.03347
sgpcmbeC1.c1,2007,09 7:30:00,30 ,5.977496,102.7328,53.06863,25.20061
sgpcmbeC1.c1,2007,09 8:30:00,30 ,5.459639,144.4911,69.68249,36.82606
sgpcmbeC1.c1,2007,09 9:30:00,30 ,1.708072, 163.755,69.66004,40.07823
sgpcmbeC1.c1,2007,0910:30:00,30 ,0.735605,198.3974, 65.8255,43.77337
sgpcmbeC1.c1,2007,0911:30:00,30 ,0.859234,280.3139,92.33452,80.72759
sgpcmbeC1.c1,2007,0912:30:00,30 , 0.75194,259.8693,96.91956,85.15144
sgpcmbeC1.c1,2007,0913:30:00,30 ,0.664105,300.6783,117.5022,86.80338
sgpcmbeC1.c1,2007,0914:30:00,30 ,0.293945,276.0427,104.8454, 69.5252
sgpcmbeC1.c1,2007,0915:30:00,30 ,0.585364,246.4101,82.68699,50.08481
sgpcmbeC1.c1,2007,0916:30:00,30 ,5.772561,157.3259, 67.8001,25.06955
sgpcmbeC1.c1,2007,0917:30:00,30 , 0.16691,79.27361,50.58814,18.01293
sgpcmbeC1.c1,2007,0918:30:00,29 ,4.999798,51.74611,18.30164, 12.6753
sgpcmbeC1.c1,2007,0919:30:00,29 ,       0,1.677461,0.148353,0.455856
sgpcmbeC1.c1,2007,0920:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0921:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0922:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0923:30:00,29 ,       0,       0,       0,       0