datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,1999,09 0:30:00,29 ,       0,0.201541,0.038765,0.062018
twpcmbeC2.c1,1999,09 1:30:00,29 ,       0,0.273576,0.052705,0.081719
twpcmbeC2.c1,1999,09 2:30:00,29 ,       0,0.203256,0.049956,0.073414
twpcmbeC2.c1,1999,09 3:30:00,29 ,       0,0.244143,0.025349,0.057702
twpcmbeC2.c1,1999,09 4:30:00,29 ,       0,0.191684, 0.02479,  0.0552
twpcmbeC2.c1,1999,09 5:30:00,29 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,09 6:30:00,29 ,2.675232,11.98017,7.688442,1.939969
twpcmbeC2.c1,1999,09 7:30:00,29 ,27.64331,105.4473,74.15617,18.98526
twpcmbeC2.c1,1999,09 8:30:00,29 ,  58.167,173.8391,113.2988,34.60364
twpcmbeC2.c1,1999,09 9:30:00,29 ,34.18961,265.9598,126.1147,63.41969
twpcmbeC2.c1,1999,0910:30:00,29 ,35.99751,314.3287,143.2697,72.99656
twpcmbeC2.c1,1999,0911:30:00,29 , 27.8539,342.2485,167.7467,106.9894
twpcmbeC2.c1,1999,0912:30:00,29 ,13.93257,417.5212,196.8586,117.1434
twpcmbeC2.c1,1999,0913:30:00,29 ,20.45662,354.4662,198.3261,94.05809
twpcmbeC2.c1,1999,0914:30:00,29 ,46.36266,316.4286,202.8409,81.53369
twpcmbeC2.c1,1999,0915:30:00,29 ,57.56706,285.9131,181.6658,63.94814
twpcmbeC2.c1,1999,0916:30:00,30 ,70.07749,205.2252,  152.76,41.93969
twpcmbeC2.c1,1999,0917:30:00,30 ,35.53327,136.2728,90.53731,21.83696
twpcmbeC2.c1,1999,0918:30:00,30 ,17.47787,72.64391,37.84373,11.69853
twpcmbeC2.c1,1999,0919:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,0920:30:00,30 ,       0,       0,       0,       0
twpcmbeC2.c1,1999,0921:30:00,30 ,       0,0.072486,0.007009,0.021395
twpcmbeC2.c1,1999,0922:30:00,30 ,       0, 0.11821,0.012657,0.033881
twpcmbeC2.c1,1999,0923:30:00,30 ,       0,0.244702,0.030521,0.058304