datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,05 0:30:00,31 ,       0,0.609181,0.076334,0.175023
sgpcmbeC1.c1,2006,05 1:30:00,30 ,       0,0.888517,0.094545, 0.22643
sgpcmbeC1.c1,2006,05 2:30:00,31 ,       0,0.502153,  0.0648,0.140419
sgpcmbeC1.c1,2006,05 3:30:00,31 ,       0,0.231211,0.012252,0.042711
sgpcmbeC1.c1,2006,05 4:30:00,31 ,       0,1.066843,0.077304,0.215133
sgpcmbeC1.c1,2006,05 5:30:00,31 ,0.725422, 38.5548,12.82215,9.728455
sgpcmbeC1.c1,2006,05 6:30:00,31 ,5.055361,165.3992,113.0248,52.34235
sgpcmbeC1.c1,2006,05 7:30:00,31 ,35.73541,378.4454,283.1725,108.6846
sgpcmbeC1.c1,2006,05 8:30:00,31 ,59.55843,574.5131,433.4587,162.6524
sgpcmbeC1.c1,2006,05 9:30:00,31 ,73.87218,751.9416,591.1904,216.0023
sgpcmbeC1.c1,2006,0510:30:00,31 ,143.4912, 890.205,706.5592, 247.123
sgpcmbeC1.c1,2006,0511:30:00,31 ,157.9913,973.1274,769.5834,253.4469
sgpcmbeC1.c1,2006,0512:30:00,31 ,155.3979,1004.988,756.8288,277.0522
sgpcmbeC1.c1,2006,0513:30:00,31 ,203.6497,944.7359,743.2086,239.2432
sgpcmbeC1.c1,2006,0514:30:00,31 ,206.0053,873.0159,684.2425,204.4231
sgpcmbeC1.c1,2006,0515:30:00,31 ,76.73244, 737.957,567.9404,182.8109
sgpcmbeC1.c1,2006,0516:30:00,31 ,61.69767, 563.719,433.0966,147.9813
sgpcmbeC1.c1,2006,0517:30:00,31 ,27.93139,377.3846,273.9447,97.78527
sgpcmbeC1.c1,2006,0518:30:00,31 ,13.26582,169.0888, 97.7663,49.17348
sgpcmbeC1.c1,2006,0519:30:00,31 ,0.356222, 34.7298,9.307399,7.034755
sgpcmbeC1.c1,2006,0520:30:00,31 ,       0,2.170943,0.372809,0.626997
sgpcmbeC1.c1,2006,0521:30:00,31 ,       0, 2.27651,0.190555,0.471736
sgpcmbeC1.c1,2006,0522:30:00,31 ,       0,1.736242,0.145137,0.360821
sgpcmbeC1.c1,2006,0523:30:00,31 ,       0,0.724934,0.089353,0.194836