datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2005,07 0:30:00,29 ,       0,1.726511,0.059535,0.320605
twpcmbeC1.c1,2005,07 1:30:00,29 ,       0, 1.13204,0.039036,0.210215
twpcmbeC1.c1,2005,07 2:30:00,29 ,       0, 0.81469,0.028093,0.151284
twpcmbeC1.c1,2005,07 3:30:00,29 ,       0,4.042082,0.139382,0.750596
twpcmbeC1.c1,2005,07 4:30:00,29 ,       0,2.338809,0.080649,0.434306
twpcmbeC1.c1,2005,07 5:30:00,29 ,       0,       0,       0,       0
twpcmbeC1.c1,2005,07 6:30:00,29 ,3.759342,30.13662,16.28223,7.852955
twpcmbeC1.c1,2005,07 7:30:00,30 ,9.283475,63.89977,29.05561,14.34991
twpcmbeC1.c1,2005,07 8:30:00,31 ,1.021913,98.53415,37.43819,22.38848
twpcmbeC1.c1,2005,07 9:30:00,31 ,4.691139,116.6681,37.81688,24.41726
twpcmbeC1.c1,2005,0710:30:00,31 ,11.13417, 100.735,42.29007,25.41726
twpcmbeC1.c1,2005,0711:30:00,31 ,5.212061,190.6203,55.58775,42.38227
twpcmbeC1.c1,2005,0712:30:00,31 ,3.989635,  186.37, 61.2465,43.98824
twpcmbeC1.c1,2005,0713:30:00,31 ,1.458518,214.4421,50.48537,45.73079
twpcmbeC1.c1,2005,0714:30:00,31 , 3.99543,137.0037,41.75708,32.21543
twpcmbeC1.c1,2005,0715:30:00,31 ,1.100097,78.36633,37.27405,21.71623
twpcmbeC1.c1,2005,0716:30:00,31 ,4.097528,73.70432,30.06759,20.40318
twpcmbeC1.c1,2005,0717:30:00,29 ,4.215988,49.05604,19.24562,12.77782
twpcmbeC1.c1,2005,0718:30:00,29 ,       0,6.830677,3.156625,1.568323
twpcmbeC1.c1,2005,0719:30:00,29 ,       0, 1.86538,0.064323,0.346392
twpcmbeC1.c1,2005,0720:30:00,29 ,       0,3.246844, 0.11196,0.602924
twpcmbeC1.c1,2005,0721:30:00,29 ,       0,2.900517,0.100018,0.538612
twpcmbeC1.c1,2005,0722:30:00,29 ,       0,1.256378,0.043323,0.233304
twpcmbeC1.c1,2005,0723:30:00,29 ,       0,0.643784,0.022199,0.119548