datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,1999,05 0:30:00,31 ,       0,0.043443,0.001866,0.008138
twpcmbeC2.c1,1999,05 1:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,05 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,05 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,05 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,05 5:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,05 6:30:00,31 ,2.513158,7.534072,4.791251,1.092511
twpcmbeC2.c1,1999,05 7:30:00,31 ,10.05444,39.85863,22.11615,7.899483
twpcmbeC2.c1,1999,05 8:30:00,31 ,3.933946,65.30468,26.29867,12.65659
twpcmbeC2.c1,1999,05 9:30:00,31 ,8.220366, 78.3362,34.42173,17.11421
twpcmbeC2.c1,1999,0510:30:00,31 ,14.94367,124.9839,48.44893,22.98962
twpcmbeC2.c1,1999,0511:30:00,31 , 33.0341, 140.122,56.93867,23.80263
twpcmbeC2.c1,1999,0512:30:00,31 ,32.95931,138.1849,58.40442,20.19572
twpcmbeC2.c1,1999,0513:30:00,31 ,16.08987,145.8694,54.05029,24.69206
twpcmbeC2.c1,1999,0514:30:00,31 ,21.87963,90.71675,49.86455,17.38924
twpcmbeC2.c1,1999,0515:30:00,31 ,14.50641,101.5127,40.12895,15.54648
twpcmbeC2.c1,1999,0516:30:00,31 ,2.760626,  56.486,29.29939,11.95941
twpcmbeC2.c1,1999,0517:30:00,31 ,3.236777, 37.2887,20.81817,9.077926
twpcmbeC2.c1,1999,0518:30:00,31 ,11.67074,32.25732,20.87975,5.856839
twpcmbeC2.c1,1999,0519:30:00,31 ,       0,1.259565,0.121016,0.238818
twpcmbeC2.c1,1999,0520:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,0521:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,0522:30:00,31 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,0523:30:00,31 ,       0,0.099881,0.003222,0.017939