datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,03 0:30:00,29 ,       0,0.001269,0.000044,0.000236
twpcmbeC1.c1,2006,03 1:30:00,31 ,       0,0.002844,0.000096, 0.00051
twpcmbeC1.c1,2006,03 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 5:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,03 6:30:00,31 ,0.529644,37.93223, 18.8362, 8.17364
twpcmbeC1.c1,2006,03 7:30:00,31 ,4.820012,152.5157,96.31721,  38.176
twpcmbeC1.c1,2006,03 8:30:00,31 ,28.87946,281.2804,176.0191,70.56183
twpcmbeC1.c1,2006,03 9:30:00,31 ,77.55808,438.8483,253.3833,111.5646
twpcmbeC1.c1,2006,0310:30:00,31 ,94.93779,488.9833,305.6274,100.7365
twpcmbeC1.c1,2006,0311:30:00,31 ,44.29467,577.8063,336.0451,128.3252
twpcmbeC1.c1,2006,0312:30:00,31 ,29.53107,581.7993,312.6791,138.0953
twpcmbeC1.c1,2006,0313:30:00,31 ,69.44462,569.7109,336.1534,147.5445
twpcmbeC1.c1,2006,0314:30:00,31 , 30.6881,503.9605,294.4677,126.9356
twpcmbeC1.c1,2006,0315:30:00,31 ,20.02423, 423.447,217.8683,95.80341
twpcmbeC1.c1,2006,0316:30:00,31 , 6.85241,253.0204,148.3358,62.53176
twpcmbeC1.c1,2006,0317:30:00,31 ,5.121308,134.6585, 66.3295,30.18397
twpcmbeC1.c1,2006,0318:30:00,31 ,0.447269,9.494808,4.836199,2.455465
twpcmbeC1.c1,2006,0319:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0320:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0321:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0322:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0323:30:00,29 ,       0,       0,       0,       0