datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,05 0:30:00,31 ,       0,0.166947,0.011548,0.037921
sgpcmbeC1.c1,1997,05 1:30:00,31 ,       0,0.157964,0.005096,0.028371
sgpcmbeC1.c1,1997,05 2:30:00,31 ,       0,0.058105,0.001874,0.010436
sgpcmbeC1.c1,1997,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,05 4:30:00,31 ,       0,0.038875,0.001254,0.006982
sgpcmbeC1.c1,1997,05 5:30:00,31 ,       0,14.06794,3.909901,4.570598
sgpcmbeC1.c1,1997,05 6:30:00,31 ,0.042053,72.42979,27.79565,23.66522
sgpcmbeC1.c1,1997,05 7:30:00,31 , 0.02345,150.9816,52.02734,35.70849
sgpcmbeC1.c1,1997,05 8:30:00,31 ,0.341985,239.3789,65.60703, 53.0049
sgpcmbeC1.c1,1997,05 9:30:00,31 ,0.538727,172.8743,67.72251,50.55956
sgpcmbeC1.c1,1997,0510:30:00,30 ,2.064844,277.6272, 73.1482,66.67111
sgpcmbeC1.c1,1997,0511:30:00,30 , 1.42791,337.2302,100.1992,97.22077
sgpcmbeC1.c1,1997,0512:30:00,30 ,2.265348,388.8839,125.9438,113.3212
sgpcmbeC1.c1,1997,0513:30:00,30 , 9.73783,365.5307,142.0157,119.9329
sgpcmbeC1.c1,1997,0514:30:00,30 ,3.380531,328.7883,108.3807,109.7104
sgpcmbeC1.c1,1997,0515:30:00,30 ,5.158009, 250.603,98.47968,71.96795
sgpcmbeC1.c1,1997,0516:30:00,30 ,1.729688,172.4476,79.49178,42.28494
sgpcmbeC1.c1,1997,0517:30:00,30 ,0.011856, 139.179,65.09987,30.57549
sgpcmbeC1.c1,1997,0518:30:00,30 ,       0, 51.0558,28.91451,18.73457
sgpcmbeC1.c1,1997,0519:30:00,30 ,       0,12.87041,2.963182,3.505177
sgpcmbeC1.c1,1997,0520:30:00,30 ,       0,0.006259,0.000209,0.001143
sgpcmbeC1.c1,1997,0521:30:00,30 ,       0,0.048554,0.001618,0.008865
sgpcmbeC1.c1,1997,0522:30:00,30 ,       0,0.176759,0.005892,0.032272
sgpcmbeC1.c1,1997,0523:30:00,30 ,       0,0.133305,0.008422,0.032103