datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,10 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 2:30:00,31 ,       0,0.033695,0.001087,0.006052
sgpcmbeC1.c1,1997,10 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 6:30:00,31 ,       0,5.539539,1.058126,1.477285
sgpcmbeC1.c1,1997,10 7:30:00,30 ,2.066295,44.03877,20.44642,14.78268
sgpcmbeC1.c1,1997,10 8:30:00,29 ,7.616339,87.45497,52.80742,29.45685
sgpcmbeC1.c1,1997,10 9:30:00,29 ,4.833945, 121.719,78.89018,40.71626
sgpcmbeC1.c1,1997,1010:30:00,31 ,13.15722,150.9235,91.84067,50.51295
sgpcmbeC1.c1,1997,1011:30:00,31 , 11.0926,155.0023,95.22797,55.24772
sgpcmbeC1.c1,1997,1012:30:00,31 ,9.957334, 157.819,95.47216,58.41319
sgpcmbeC1.c1,1997,1013:30:00,31 ,4.189766,149.9306,96.84243,50.35624
sgpcmbeC1.c1,1997,1014:30:00,31 ,9.338462,130.7953,82.77739,44.71536
sgpcmbeC1.c1,1997,1015:30:00,31 ,5.531754, 104.073,62.31989,33.74568
sgpcmbeC1.c1,1997,1016:30:00,31 ,1.796748,66.43098,38.50512,21.17659
sgpcmbeC1.c1,1997,1017:30:00,31 ,0.022783,30.71624, 10.7008,7.889103
sgpcmbeC1.c1,1997,1018:30:00,31 ,       0,  3.1279,0.106949,0.561124
sgpcmbeC1.c1,1997,1019:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1020:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1021:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1022:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1023:30:00,31 ,       0,       0,       0,       0