datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2005,06 0:30:00,30 ,       0,0.486236,0.029228,0.099587
twpcmbeC1.c1,2005,06 1:30:00,30 ,       0,0.399123,0.027764,0.090054
twpcmbeC1.c1,2005,06 2:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2005,06 3:30:00,30 ,       0,0.235041,0.010714,0.045204
twpcmbeC1.c1,2005,06 4:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2005,06 5:30:00,30 ,       0,0.173814,0.013495,0.042414
twpcmbeC1.c1,2005,06 6:30:00,30 , 3.73485,47.99038,23.97974,11.61433
twpcmbeC1.c1,2005,06 7:30:00,30 ,4.792997,119.6535,67.28004,28.41689
twpcmbeC1.c1,2005,06 8:30:00,30 ,14.80215,158.1388,75.05271,37.75706
twpcmbeC1.c1,2005,06 9:30:00,30 ,13.15497,238.3494,101.8094,64.56375
twpcmbeC1.c1,2005,0610:30:00,30 ,11.63326,307.3688, 126.909,77.21879
twpcmbeC1.c1,2005,0611:30:00,30 ,15.39097, 261.102,132.6104,76.66412
twpcmbeC1.c1,2005,0612:30:00,30 ,5.518818,323.4299, 138.406,  92.753
twpcmbeC1.c1,2005,0613:30:00,30 ,17.30485,311.6122,116.9667,79.72717
twpcmbeC1.c1,2005,0614:30:00,30 ,8.941524,221.2486,102.3206,76.05913
twpcmbeC1.c1,2005,0615:30:00,30 ,11.06278, 248.145,89.72493,55.59667
twpcmbeC1.c1,2005,0616:30:00,30 ,12.80978,149.9607,74.87086,38.70816
twpcmbeC1.c1,2005,0617:30:00,30 ,3.476857,66.39894,36.93663, 21.3465
twpcmbeC1.c1,2005,0618:30:00,30 ,0.203871,8.257264,2.898993, 1.81153
twpcmbeC1.c1,2005,0619:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2005,0620:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2005,0621:30:00,30 ,       0,0.361647,0.012055,0.066027
twpcmbeC1.c1,2005,0622:30:00,30 ,       0,0.363703,0.022925,0.087397
twpcmbeC1.c1,2005,0623:30:00,30 ,       0,0.447658,0.041838,0.127872