datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2001,02 0:30:00,28 ,       0,0.448257,0.076809,0.135675
twpcmbeC1.c1,2001,02 1:30:00,28 ,       0,0.396473,0.071447,0.120446
twpcmbeC1.c1,2001,02 2:30:00,28 ,       0,0.511125,0.053929,0.114278
twpcmbeC1.c1,2001,02 3:30:00,28 ,       0, 0.65341,0.072504,0.141093
twpcmbeC1.c1,2001,02 4:30:00,28 ,       0,0.278696,0.059148,0.083866
twpcmbeC1.c1,2001,02 5:30:00,28 ,       0,0.457904,0.045133, 0.10825
twpcmbeC1.c1,2001,02 6:30:00,28 ,2.580437,26.54743,13.55499,6.410499
twpcmbeC1.c1,2001,02 7:30:00,28 ,2.445765, 70.9213,31.50204,17.52244
twpcmbeC1.c1,2001,02 8:30:00,28 ,1.953732,85.76322,42.29854,24.78192
twpcmbeC1.c1,2001,02 9:30:00,28 ,4.021465,125.5197,50.02331,28.03405
twpcmbeC1.c1,2001,0210:30:00,28 ,1.502862,244.0093,64.32909,48.27933
twpcmbeC1.c1,2001,0211:30:00,28 , 7.01863, 201.652, 64.7904,51.40624
twpcmbeC1.c1,2001,0212:30:00,28 ,7.326375,234.0539,66.25964, 56.4616
twpcmbeC1.c1,2001,0213:30:00,28 ,3.847218,250.4876,63.41092,53.71332
twpcmbeC1.c1,2001,0214:30:00,28 ,4.298998,123.3784,51.72799,32.07979
twpcmbeC1.c1,2001,0215:30:00,28 ,3.674771,87.40675, 32.6153,22.37904
twpcmbeC1.c1,2001,0216:30:00,28 ,1.357478,102.6646,29.87577,24.08461
twpcmbeC1.c1,2001,0217:30:00,28 ,0.801549,57.66046,24.88814,13.87777
twpcmbeC1.c1,2001,0218:30:00,28 ,0.388256,17.02943,7.872993,4.612591
twpcmbeC1.c1,2001,0219:30:00,28 ,       0,0.575213,0.026032,0.108626
twpcmbeC1.c1,2001,0220:30:00,28 ,       0,0.579981, 0.04231,0.127037
twpcmbeC1.c1,2001,0221:30:00,28 ,       0,0.390564, 0.02626,0.079608
twpcmbeC1.c1,2001,0222:30:00,28 ,       0,0.360612,0.052436,0.099804
twpcmbeC1.c1,2001,0223:30:00,28 ,       0,0.463528, 0.06989,0.128376