datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2004,08 0:30:00,31 ,       0,0.001484,0.000048,0.000266
twpcmbeC1.c1,2004,08 1:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,08 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,08 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,08 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,08 5:30:00,31 ,       0,0.088501,0.005243, 0.02038
twpcmbeC1.c1,2004,08 6:30:00,31 ,1.408525,34.20621,17.60406,6.576482
twpcmbeC1.c1,2004,08 7:30:00,31 ,1.782302,52.96078,27.79827,15.79685
twpcmbeC1.c1,2004,08 8:30:00,31 ,3.556533,67.65112,30.21147,18.83765
twpcmbeC1.c1,2004,08 9:30:00,30 ,1.908395,100.4754,46.03963,27.18642
twpcmbeC1.c1,2004,0810:30:00,31 , 3.14714, 123.323,54.55611,27.63495
twpcmbeC1.c1,2004,0811:30:00,31 ,8.797519,99.08266,47.62495,21.77646
twpcmbeC1.c1,2004,0812:30:00,31 ,1.710039,137.0714,61.37636,32.71381
twpcmbeC1.c1,2004,0813:30:00,31 ,1.762618,147.5816,55.58782,34.10082
twpcmbeC1.c1,2004,0814:30:00,31 ,2.910751,80.89956,41.23053,22.92764
twpcmbeC1.c1,2004,0815:30:00,31 ,2.858114,77.11613,34.73265,18.26154
twpcmbeC1.c1,2004,0816:30:00,31 ,3.940702,102.7616,29.81397,20.92722
twpcmbeC1.c1,2004,0817:30:00,31 ,1.659673,54.90803, 23.0958,11.59306
twpcmbeC1.c1,2004,0818:30:00,31 ,0.064708,10.02445,4.602798,1.965551
twpcmbeC1.c1,2004,0819:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0820:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0821:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0822:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0823:30:00,31 ,       0,       0,       0,       0