datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2004,05 0:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,05 1:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,05 2:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,05 3:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,05 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,05 5:30:00,31 ,       0,0.317387,0.087459,0.098723
twpcmbeC1.c1,2004,05 6:30:00,31 ,6.517957,43.58327,20.35887,8.548383
twpcmbeC1.c1,2004,05 7:30:00,31 ,3.423553,48.04208,  26.259,12.97231
twpcmbeC1.c1,2004,05 8:30:00,31 ,1.779136,101.0283,35.71547,25.56369
twpcmbeC1.c1,2004,05 9:30:00,31 ,7.032589,100.0242, 40.2409,24.84689
twpcmbeC1.c1,2004,0510:30:00,31 ,2.980278,121.9981, 38.7213,26.81635
twpcmbeC1.c1,2004,0511:30:00,31 ,2.228117,136.1111,55.56947,35.70936
twpcmbeC1.c1,2004,0512:30:00,31 ,4.028364,135.2617, 55.8776,29.48738
twpcmbeC1.c1,2004,0513:30:00,31 ,6.343821,159.1415,53.63911,32.91692
twpcmbeC1.c1,2004,0514:30:00,31 ,4.716848, 122.715,50.02649,30.29508
twpcmbeC1.c1,2004,0515:30:00,31 ,5.171656,113.6668,46.11363,28.53364
twpcmbeC1.c1,2004,0516:30:00,31 ,4.937248,71.17451,30.75037,16.61259
twpcmbeC1.c1,2004,0517:30:00,31 ,3.149225,40.28225,19.16881, 11.3604
twpcmbeC1.c1,2004,0518:30:00,31 ,       0,4.545336,1.626606,1.056606
twpcmbeC1.c1,2004,0519:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0520:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0521:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0522:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2004,0523:30:00,31 ,       0,       0,       0,       0