datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2005,09 0:30:00,29 ,0.072634, 129.529,16.79833,25.29588
twpcmbeC2.c1,2005,09 1:30:00,30 ,       0,92.03585,21.26282,23.83856
twpcmbeC2.c1,2005,09 2:30:00,29 ,0.161305,68.06719,17.67334,19.72631
twpcmbeC2.c1,2005,09 3:30:00,29 ,       0,122.0912,21.10344,26.37626
twpcmbeC2.c1,2005,09 4:30:00,29 ,0.016882, 81.9604,20.25397,19.98063
twpcmbeC2.c1,2005,09 5:30:00,29 ,0.492005,53.09742,15.75438,16.02575
twpcmbeC2.c1,2005,09 6:30:00,29 ,0.519071,93.06333,17.50668,22.60486
twpcmbeC2.c1,2005,09 7:30:00,29 ,0.188968,95.82549,15.30134,20.34032
twpcmbeC2.c1,2005,09 8:30:00,29 ,0.341186,104.9388,15.04528, 21.2594
twpcmbeC2.c1,2005,09 9:30:00,28 ,       0,82.38038,13.50592,20.61008
twpcmbeC2.c1,2005,0910:30:00,28 ,       0, 95.9406, 22.9968,23.87961
twpcmbeC2.c1,2005,0911:30:00,29 ,       0,109.4317,31.72677,29.74987
twpcmbeC2.c1,2005,0912:30:00,29 ,       0,140.8353,34.85136,34.87921
twpcmbeC2.c1,2005,0913:30:00,29 ,       0,164.0867,34.55131,34.27685
twpcmbeC2.c1,2005,0914:30:00,30 ,       0,157.6564,34.53361, 33.7288
twpcmbeC2.c1,2005,0915:30:00,30 ,       0,139.7649, 34.1962,36.36457
twpcmbeC2.c1,2005,0916:30:00,30 ,       0,129.9362,  32.181,36.98781
twpcmbeC2.c1,2005,0917:30:00,29 ,0.202514,178.0179,28.83079, 38.6778
twpcmbeC2.c1,2005,0918:30:00,30 ,0.184635,137.9487,19.33154,27.37438
twpcmbeC2.c1,2005,0919:30:00,29 ,       0,60.25345,13.10568,15.90926
twpcmbeC2.c1,2005,0920:30:00,29 ,       0, 49.4236,12.91101,13.43067
twpcmbeC2.c1,2005,0921:30:00,29 ,       0,77.94199,19.69963,19.02528
twpcmbeC2.c1,2005,0922:30:00,29 ,       0,52.80395,14.49982,15.90312
twpcmbeC2.c1,2005,0923:30:00,29 ,       0,94.83434,17.77104,23.66324