datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,10 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,10 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,10 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,10 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,10 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,10 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,10 6:30:00,30 ,       0,8.657822,1.732603,2.140821
sgpcmbeC1.c1,2003,10 7:30:00,30 ,0.005936,54.77771, 27.6048,21.48884
sgpcmbeC1.c1,2003,10 8:30:00,30 ,0.000716,90.43446,43.24911,25.36367
sgpcmbeC1.c1,2003,10 9:30:00,31 , 0.19816,155.6031,54.39187,41.88449
sgpcmbeC1.c1,2003,1010:30:00,31 ,0.539657,158.9546,48.74357, 48.0085
sgpcmbeC1.c1,2003,1011:30:00,31 ,0.917495, 305.089,69.08518,83.22137
sgpcmbeC1.c1,2003,1012:30:00,31 ,1.527401,213.4231,55.77103, 65.9547
sgpcmbeC1.c1,2003,1013:30:00,31 ,       0,  259.49, 65.3413,82.30508
sgpcmbeC1.c1,2003,1014:30:00,31 ,       0,217.4938,63.38851,59.48377
sgpcmbeC1.c1,2003,1015:30:00,31 ,       0,139.7456,51.89117,35.35905
sgpcmbeC1.c1,2003,1016:30:00,31 ,       0,70.21365,39.41884,22.69008
sgpcmbeC1.c1,2003,1017:30:00,31 ,       0,47.23434,17.68653,13.10381
sgpcmbeC1.c1,2003,1018:30:00,30 ,       0,3.660708,0.604274,1.110182
sgpcmbeC1.c1,2003,1019:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1020:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1021:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1022:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,1023:30:00,28 ,       0,       0,       0,       0