datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2004,09 0:30:00,30 ,       0,0.001728,0.000058,0.000316
twpcmbeC1.c1,2004,09 1:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,09 2:30:00,30 ,       0,0.003399,0.000113,0.000621
twpcmbeC1.c1,2004,09 3:30:00,30 ,       0,0.012775,0.000426,0.002332
twpcmbeC1.c1,2004,09 4:30:00,30 ,       0,0.027788,0.001191,0.005228
twpcmbeC1.c1,2004,09 5:30:00,30 ,       0,0.399957,0.090817,0.103106
twpcmbeC1.c1,2004,09 6:30:00,30 ,3.544724,54.70393,29.46957,12.41648
twpcmbeC1.c1,2004,09 7:30:00,30 ,16.38827,168.9251,115.7835,44.10633
twpcmbeC1.c1,2004,09 8:30:00,30 ,14.01517,295.7675,183.9907,70.74743
twpcmbeC1.c1,2004,09 9:30:00,30 ,36.47807,469.4928,246.0042,107.0417
twpcmbeC1.c1,2004,0910:30:00,30 , 94.1273,484.3525,254.4139,107.8031
twpcmbeC1.c1,2004,0911:30:00,30 , 98.6475,486.7919, 269.194,110.3362
twpcmbeC1.c1,2004,0912:30:00,30 ,39.95093,579.7525,248.5213,  126.54
twpcmbeC1.c1,2004,0913:30:00,30 ,12.51721,475.7712,259.6757,123.6596
twpcmbeC1.c1,2004,0914:30:00,30 ,65.66009,400.5216,221.5278,106.5196
twpcmbeC1.c1,2004,0915:30:00,30 ,39.55296,288.5152,174.7036,64.13347
twpcmbeC1.c1,2004,0916:30:00,30 ,7.454911, 204.755,117.2678,46.94839
twpcmbeC1.c1,2004,0917:30:00,30 ,4.702991,88.60589,40.25335,17.74065
twpcmbeC1.c1,2004,0918:30:00,30 ,0.139507,3.231488,  0.9607,0.826509
twpcmbeC1.c1,2004,0919:30:00,30 ,       0,  0.0031,0.000103,0.000566
twpcmbeC1.c1,2004,0920:30:00,30 ,       0, 0.00111,0.000037,0.000203
twpcmbeC1.c1,2004,0921:30:00,30 ,       0,0.013287,0.000443,0.002426
twpcmbeC1.c1,2004,0922:30:00,30 ,       0,0.006276,0.000209,0.001146
twpcmbeC1.c1,2004,0923:30:00,29 ,       0,0.001149, 0.00004,0.000213