datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2001,05 0:30:00,29 ,       0,0.433307,0.196778,0.115552
twpcmbeC2.c1,2001,05 1:30:00,30 ,       0,0.383829, 0.16383,0.139949
twpcmbeC2.c1,2001,05 2:30:00,30 ,       0,0.523856,0.117619,0.152299
twpcmbeC2.c1,2001,05 3:30:00,30 ,       0,0.415403,0.098538,0.125938
twpcmbeC2.c1,2001,05 4:30:00,30 ,       0, 0.32686, 0.03755,0.083704
twpcmbeC2.c1,2001,05 5:30:00,30 ,       0,0.286618,0.009554,0.052329
twpcmbeC2.c1,2001,05 6:30:00,30 ,       0,6.822158,3.578484,1.639885
twpcmbeC2.c1,2001,05 7:30:00,30 ,16.33785,84.05956,54.80277,15.03274
twpcmbeC2.c1,2001,05 8:30:00,30 ,32.98856,153.5046,  84.715,24.35274
twpcmbeC2.c1,2001,05 9:30:00,30 ,52.03888,252.0878,143.4022, 54.9848
twpcmbeC2.c1,2001,0510:30:00,30 ,42.38992,306.1031,167.1029,67.08441
twpcmbeC2.c1,2001,0511:30:00,30 ,31.37804, 357.325, 173.622,102.2867
twpcmbeC2.c1,2001,0512:30:00,30 ,15.13424,374.4285,189.7063,112.5073
twpcmbeC2.c1,2001,0513:30:00,30 ,14.19464,411.5216,205.9139,105.5581
twpcmbeC2.c1,2001,0514:30:00,30 ,32.99623,299.9321, 167.845, 89.6673
twpcmbeC2.c1,2001,0515:30:00,30 ,18.62769,278.1384,137.0291,66.42947
twpcmbeC2.c1,2001,0516:30:00,30 ,9.758061,175.0941,100.6188,46.98585
twpcmbeC2.c1,2001,0517:30:00,30 ,2.100866,127.9073, 74.3965,32.97888
twpcmbeC2.c1,2001,0518:30:00,30 ,5.503182,53.08624,36.99179, 12.5247
twpcmbeC2.c1,2001,0519:30:00,30 ,       0,0.777134,0.088804,0.175348
twpcmbeC2.c1,2001,0520:30:00,30 ,       0,0.386787,0.037418,0.094652
twpcmbeC2.c1,2001,0521:30:00,29 ,       0,0.300653,0.106906, 0.12271
twpcmbeC2.c1,2001,0522:30:00,29 ,       0,0.326575,0.107304,0.113303
twpcmbeC2.c1,2001,0523:30:00,27 ,       0, 0.35588,0.123545,0.127823