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 ,0.303087,14.91497,7.596096, 4.03182
sgpcmbeC1.c1,2002,09 7:30:00,30 , 3.29785,60.03247,44.08287,13.40736
sgpcmbeC1.c1,2002,09 8:30:00,30 ,9.318196,100.3306,82.33268,23.59384
sgpcmbeC1.c1,2002,09 9:30:00,30 ,21.08478,133.5272,114.5453,28.23287
sgpcmbeC1.c1,2002,0910:30:00,30 ,44.76398, 155.729,139.7315, 27.5815
sgpcmbeC1.c1,2002,0911:30:00,30 ,72.42093,169.3449,153.5586,22.31725
sgpcmbeC1.c1,2002,0912:30:00,30 , 52.1424,173.2372,153.0165,26.40327
sgpcmbeC1.c1,2002,0913:30:00,30 ,24.07067, 167.875,143.2123, 33.9005
sgpcmbeC1.c1,2002,0914:30:00,30 ,28.96179,150.2376,129.4335,30.58142
sgpcmbeC1.c1,2002,0915:30:00,30 ,12.48814,128.2948,103.1285,29.06365
sgpcmbeC1.c1,2002,0916:30:00,30 ,2.741735, 93.4243,68.51079,23.22414
sgpcmbeC1.c1,2002,0917:30:00,30 ,1.086984,51.18186,32.33399,14.11518
sgpcmbeC1.c1,2002,0918:30:00,30 ,       0,11.52746,4.210689,3.475567
sgpcmbeC1.c1,2002,0919:30:00,29 ,       0,       0,       0,       0
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