datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,08 0:30:00,31 ,       0,0.012784,0.000412,0.002296
twpcmbeC1.c1,2006,08 1:30:00,30 ,       0,0.004931,0.000164,  0.0009
twpcmbeC1.c1,2006,08 2:30:00,31 ,       0,0.001123,0.000036,0.000202
twpcmbeC1.c1,2006,08 3:30:00,31 ,       0,0.028204, 0.00091,0.005066
twpcmbeC1.c1,2006,08 4:30:00,31 ,       0, 0.00743,0.000318,0.001362
twpcmbeC1.c1,2006,08 5:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,08 6:30:00,31 ,1.439088,24.09485,15.56706,6.400466
twpcmbeC1.c1,2006,08 7:30:00,31 ,2.659932,67.63398,31.72883,14.39897
twpcmbeC1.c1,2006,08 8:30:00,31 ,1.349283, 70.6401,34.53717,16.33448
twpcmbeC1.c1,2006,08 9:30:00,31 ,9.357301,107.8831,49.04414, 24.6209
twpcmbeC1.c1,2006,0810:30:00,31 ,7.460908,123.0865,62.05891,34.89205
twpcmbeC1.c1,2006,0811:30:00,31 , 1.97941,154.5473,54.19062,35.17823
twpcmbeC1.c1,2006,0812:30:00,31 ,1.884591,194.2935,66.13091,43.03847
twpcmbeC1.c1,2006,0813:30:00,31 ,7.414028,159.9803, 55.4673,35.84313
twpcmbeC1.c1,2006,0814:30:00,31 ,5.742809, 126.531,59.28935,32.34995
twpcmbeC1.c1,2006,0815:30:00,31 ,2.381188,112.9522,43.84362,28.51927
twpcmbeC1.c1,2006,0816:30:00,31 , 2.74111,104.8955,35.99649,23.95116
twpcmbeC1.c1,2006,0817:30:00,31 ,3.702238,48.58241,24.46682,10.92799
twpcmbeC1.c1,2006,0818:30:00,31 ,0.135933,8.768118,4.680263,2.101773
twpcmbeC1.c1,2006,0819:30:00,31 ,       0,0.047983,0.001548,0.008618
twpcmbeC1.c1,2006,0820:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0821:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0822:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0823:30:00,31 ,       0,       0,       0,       0