datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,06 0:30:00,30 ,       0,0.902173,0.030072,0.164714
sgpcmbeC1.c1,1997,06 1:30:00,30 ,       0,1.721091, 0.05737,0.314227
sgpcmbeC1.c1,1997,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,06 4:30:00,30 ,       0,0.389403, 0.01298,0.071095
sgpcmbeC1.c1,1997,06 5:30:00,30 ,1.482317,23.34382,13.05889,4.589491
sgpcmbeC1.c1,1997,06 6:30:00,30 ,5.005326, 50.3372,18.01325,10.89341
sgpcmbeC1.c1,1997,06 7:30:00,30 ,3.845435,67.92413,23.85409,17.95513
sgpcmbeC1.c1,1997,06 8:30:00,30 ,1.596034,106.5253,33.29406,30.22611
sgpcmbeC1.c1,1997,06 9:30:00,30 ,1.529641,155.9675,44.70311,44.48772
sgpcmbeC1.c1,1997,0610:30:00,30 ,4.316426,177.4552,54.70834,43.01618
sgpcmbeC1.c1,1997,0611:30:00,30 ,2.334672,159.2858,52.42675,44.82129
sgpcmbeC1.c1,1997,0612:30:00,30 ,2.703019,143.3251,43.05098,37.12641
sgpcmbeC1.c1,1997,0613:30:00,30 ,3.292517,176.0638,49.32401,44.48857
sgpcmbeC1.c1,1997,0614:30:00,30 ,1.910227,111.5723,43.39192,34.31283
sgpcmbeC1.c1,1997,0615:30:00,30 ,2.170086, 108.787,36.38358,26.76204
sgpcmbeC1.c1,1997,0616:30:00,30 ,3.901597,101.8981,37.22651,24.83857
sgpcmbeC1.c1,1997,0617:30:00,30 ,2.593183, 70.0244,22.45023,16.24895
sgpcmbeC1.c1,1997,0618:30:00,30 ,5.809392,38.39054,17.13483,7.124496
sgpcmbeC1.c1,1997,0619:30:00,30 ,1.571235,25.26694,13.11537, 4.91906
sgpcmbeC1.c1,1997,0620:30:00,30 ,       0,0.445147,0.028204,0.107491
sgpcmbeC1.c1,1997,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0623:30:00,30 ,       0, 1.62364,0.080715,0.325749