datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,05 0:30:00,31 ,       0,0.017959,0.000579,0.003226
twpcmbeC1.c1,2006,05 1:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,05 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,05 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,05 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,05 5:30:00,31 ,       0,0.926668,0.158807,0.210949
twpcmbeC1.c1,2006,05 6:30:00,31 ,10.31132,37.47796,19.59171,6.395145
twpcmbeC1.c1,2006,05 7:30:00,31 , 4.28659,53.03447,22.97029,14.20402
twpcmbeC1.c1,2006,05 8:30:00,31 ,2.304762,94.51739,33.38442,25.57749
twpcmbeC1.c1,2006,05 9:30:00,31 ,1.801477,75.04999,34.07689,19.37212
twpcmbeC1.c1,2006,0510:30:00,31 ,1.523115,206.9915,49.20728, 40.4436
twpcmbeC1.c1,2006,0511:30:00,31 ,5.185829,213.0823,57.40136, 51.8158
twpcmbeC1.c1,2006,0512:30:00,31 ,4.143906,102.7561,40.99214,24.23371
twpcmbeC1.c1,2006,0513:30:00,31 , 2.34989,165.5958,41.16178,39.72938
twpcmbeC1.c1,2006,0514:30:00,31 ,5.485217,130.5377,42.47982,29.21711
twpcmbeC1.c1,2006,0515:30:00,31 ,4.748988,102.4999,38.51742,  25.741
twpcmbeC1.c1,2006,0516:30:00,31 ,3.101658,43.77185,20.76822,10.61261
twpcmbeC1.c1,2006,0517:30:00,31 ,0.901946,49.93854,24.60798,10.89856
twpcmbeC1.c1,2006,0518:30:00,31 ,       0,3.732103,2.228997,0.795629
twpcmbeC1.c1,2006,0519:30:00,31 ,       0,0.001123,0.000036,0.000202
twpcmbeC1.c1,2006,0520:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0521:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0522:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0523:30:00,31 ,       0,0.063489,0.002314, 0.01145