datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,05 0:30:00,29 ,       0,259.5017,35.17298,62.08608
sgpcmbeC1.c1,2002,05 1:30:00,25 ,       0, 152.909,29.45467,47.65104
sgpcmbeC1.c1,2002,05 2:30:00,25 ,       0,166.9168,32.19663,52.99255
sgpcmbeC1.c1,2002,05 3:30:00,24 ,       0,131.9825,22.83447,38.13323
sgpcmbeC1.c1,2002,05 4:30:00,24 ,       0,172.3217,26.51402,43.36543
sgpcmbeC1.c1,2002,05 5:30:00,24 ,       0,188.6954, 20.4382,43.03779
sgpcmbeC1.c1,2002,05 6:30:00,25 ,       0,250.7979, 25.2472,58.49668
sgpcmbeC1.c1,2002,05 7:30:00,26 ,       0,366.5718,  33.958,90.77077
sgpcmbeC1.c1,2002,05 8:30:00,27 ,       0,164.9313,21.94111,36.66025
sgpcmbeC1.c1,2002,05 9:30:00,30 ,       0,150.2383,16.46642,29.58904
sgpcmbeC1.c1,2002,0510:30:00,31 ,       0,106.8614,22.38292, 31.0677
sgpcmbeC1.c1,2002,0511:30:00,31 ,       0,184.5482,39.92178,56.75528
sgpcmbeC1.c1,2002,0512:30:00,31 ,       0,222.7387, 47.9318,64.17372
sgpcmbeC1.c1,2002,0513:30:00,31 ,       0,261.2766,58.15968, 79.4815
sgpcmbeC1.c1,2002,0514:30:00,30 ,       0,275.9392, 40.8461,70.78842
sgpcmbeC1.c1,2002,0515:30:00,30 ,       0,281.4722,42.21191,74.41335
sgpcmbeC1.c1,2002,0516:30:00,31 ,       0,165.3334,25.84523,40.62483
sgpcmbeC1.c1,2002,0517:30:00,31 ,       0,235.8195,23.68755,51.23425
sgpcmbeC1.c1,2002,0518:30:00,31 ,       0,138.0353,16.12139,31.00829
sgpcmbeC1.c1,2002,0519:30:00,31 ,       0,391.8893,35.09437,84.73294
sgpcmbeC1.c1,2002,0520:30:00,30 ,       0,143.2044,19.99652,38.25033
sgpcmbeC1.c1,2002,0521:30:00,30 ,       0,124.7119, 15.5609,29.44064
sgpcmbeC1.c1,2002,0522:30:00,30 ,       0,185.2634,19.78037,40.70076
sgpcmbeC1.c1,2002,0523:30:00,30 ,       0,279.5837,27.99111,64.16042