datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,05 0:30:00,29 ,       0,113.7952,15.36904,26.03641
sgpcmbeC1.c1,1997,05 1:30:00,29 ,       0,482.8115,40.47426,102.1787
sgpcmbeC1.c1,1997,05 2:30:00,31 ,       0,298.5548,48.67179,88.52973
sgpcmbeC1.c1,1997,05 3:30:00,30 ,       0,129.7056,29.79513,45.30394
sgpcmbeC1.c1,1997,05 4:30:00,30 ,       0,198.6834,29.41524,47.44335
sgpcmbeC1.c1,1997,05 5:30:00,30 ,       0,272.8426,36.15343, 69.4347
sgpcmbeC1.c1,1997,05 6:30:00,31 ,       0,223.2954,26.34229, 48.5289
sgpcmbeC1.c1,1997,05 7:30:00,31 ,       0,338.4649,25.44242,63.02568
sgpcmbeC1.c1,1997,05 8:30:00,31 ,       0,113.8259,18.08342,28.52832
sgpcmbeC1.c1,1997,05 9:30:00,30 ,       0,110.8608,12.37963,25.05645
sgpcmbeC1.c1,1997,0510:30:00,29 ,       0,109.2867,13.33408,26.45315
sgpcmbeC1.c1,1997,0511:30:00,30 ,       0,79.29325,15.09424,22.72635
sgpcmbeC1.c1,1997,0512:30:00,29 ,       0,112.3267, 16.0865,28.74002
sgpcmbeC1.c1,1997,0513:30:00,28 ,       0,82.31059,15.55973,20.62152
sgpcmbeC1.c1,1997,0514:30:00,28 ,       0,115.9393,19.38644, 27.3986
sgpcmbeC1.c1,1997,0515:30:00,28 ,       0,127.3336,13.51466,27.21414
sgpcmbeC1.c1,1997,0516:30:00,28 ,       0, 51.5295,8.706488,13.40753
sgpcmbeC1.c1,1997,0517:30:00,28 ,       0,151.9388,16.11096,31.24551
sgpcmbeC1.c1,1997,0518:30:00,31 ,       0,143.8434,12.81565,31.23348
sgpcmbeC1.c1,1997,0519:30:00,31 ,       0,353.4822,23.64729,66.82796
sgpcmbeC1.c1,1997,0520:30:00,29 ,       0, 103.544,9.580033,24.35425
sgpcmbeC1.c1,1997,0521:30:00,29 ,       0,129.2879,15.11762,31.83739
sgpcmbeC1.c1,1997,0522:30:00,30 ,       0,136.0471,15.02513,31.94052
sgpcmbeC1.c1,1997,0523:30:00,30 ,       0,188.1463,21.14586,46.68975