datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2002,05 0:30:00,27 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,05 1:30:00,29 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,05 2:30:00,29 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,05 3:30:00,29 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,05 4:30:00,31 ,       0,0.113527,0.003662, 0.02039
twpcmbeC2.c1,2002,05 5:30:00,31 ,       0, 0.08944,0.002885,0.016064
twpcmbeC2.c1,2002,05 6:30:00,31 ,0.811499,12.74209,3.992761,2.094224
twpcmbeC2.c1,2002,05 7:30:00,31 ,8.129571,81.08903,40.30882, 17.6365
twpcmbeC2.c1,2002,05 8:30:00,31 ,15.56181,122.9653,51.35991,21.92518
twpcmbeC2.c1,2002,05 9:30:00,31 ,2.371363,79.81671,40.72309,21.06652
twpcmbeC2.c1,2002,0510:30:00,31 ,2.878601,118.9022,38.52964,23.69409
twpcmbeC2.c1,2002,0511:30:00,31 ,1.421016,135.6877,45.29126, 26.7014
twpcmbeC2.c1,2002,0512:30:00,31 ,2.446647,139.8531,49.25418,26.95483
twpcmbeC2.c1,2002,0513:30:00,31 ,1.636719,184.7675,52.79159,45.26738
twpcmbeC2.c1,2002,0514:30:00,31 ,4.716184,140.3586,53.07461,36.09239
twpcmbeC2.c1,2002,0515:30:00,31 ,2.996383,120.0563,50.06334,28.31658
twpcmbeC2.c1,2002,0516:30:00,31 ,6.038408,74.56316,37.47522,20.15738
twpcmbeC2.c1,2002,0517:30:00,31 ,3.753536,   72.53,27.61872,19.66883
twpcmbeC2.c1,2002,0518:30:00,31 ,5.587292,41.06211, 22.0384,8.972736
twpcmbeC2.c1,2002,0519:30:00,31 ,       0,0.362198,0.045776,0.098442
twpcmbeC2.c1,2002,0520:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,0521:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,0522:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,2002,0523:30:00,29 ,       0,       0,       0,       0