datastream, year, month, tod,n, min, max, mean, std
twpcmbeC3.c1,2004,04 0:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,04 1:00:00,30 ,       0,0.050045,0.002142,0.009411
twpcmbeC3.c1,2004,04 2:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,04 3:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,04 4:00:00,30 ,       0,0.228387,0.007613,0.041698
twpcmbeC3.c1,2004,04 5:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,04 6:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,04 7:00:00,30 ,       0,10.19824,6.490594,2.313538
twpcmbeC3.c1,2004,04 8:00:00,30 ,4.627145,26.62849,12.86588,4.295882
twpcmbeC3.c1,2004,04 9:00:00,30 , 10.0119,23.96307,11.93428,2.675644
twpcmbeC3.c1,2004,0410:00:00,30 ,3.503256,18.97732,9.035772, 2.75927
twpcmbeC3.c1,2004,0411:00:00,30 ,4.847462,49.04981,11.02238,10.34604
twpcmbeC3.c1,2004,0412:00:00,30 ,2.038263,69.83102,13.60038,18.86298
twpcmbeC3.c1,2004,0413:00:00,30 ,0.688525,69.66143,15.26972,19.86353
twpcmbeC3.c1,2004,0414:00:00,30 ,4.031371,56.96026,24.07318,18.24909
twpcmbeC3.c1,2004,0415:00:00,30 ,7.286477,54.05408,31.42686,15.79879
twpcmbeC3.c1,2004,0416:00:00,30 ,8.262724,44.88673,22.72727,12.63393
twpcmbeC3.c1,2004,0417:00:00,30 ,9.984044,31.21473,16.80277, 5.82487
twpcmbeC3.c1,2004,0418:00:00,30 ,3.610524,17.18668,11.09605,  2.3981
twpcmbeC3.c1,2004,0419:00:00,30 ,       0,1.310797,0.264833, 0.44312
twpcmbeC3.c1,2004,0420:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,0421:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,0422:00:00,30 ,       0,       0,       0,       0
twpcmbeC3.c1,2004,0423:00:00,30 ,       0,       0,       0,       0