datastream, year, month, tod,n, min, max, mean, std
nsacmbeC1.c1,1998,08 0:30:00,22 ,       0,1.408525,0.089452,0.306184
nsacmbeC1.c1,1998,08 1:30:00,18 ,       0,2.744591,0.152477,0.646906
nsacmbeC1.c1,1998,08 2:30:00,22 ,       0,2.494948,0.127479,0.529838
nsacmbeC1.c1,1998,08 3:30:00,24 ,       0,1.383655,0.091477,  0.2892
nsacmbeC1.c1,1998,08 4:30:00,22 ,       0,3.027379,0.657191,0.973291
nsacmbeC1.c1,1998,08 5:30:00,15 ,       0,5.364501, 2.00605,1.673137
nsacmbeC1.c1,1998,08 6:30:00,17 ,1.509429,16.86567,7.494249,3.822771
nsacmbeC1.c1,1998,08 7:30:00,25 ,3.133333,29.47399,10.16705,5.394372
nsacmbeC1.c1,1998,08 8:30:00,26 ,6.687334,42.55533,15.29888,8.034556
nsacmbeC1.c1,1998,08 9:30:00,28 ,9.995714,52.67234, 21.6641,10.44325
nsacmbeC1.c1,1998,0810:30:00,27 ,10.57491,62.03247,27.52453,14.37207
nsacmbeC1.c1,1998,0811:30:00,26 , 12.9241,68.72839,32.82492,15.50353
nsacmbeC1.c1,1998,0812:30:00,27 ,14.03185,72.66264,35.14292,16.62562
nsacmbeC1.c1,1998,0813:30:00,29 ,15.70863, 81.5279,36.71372,18.34539
nsacmbeC1.c1,1998,0814:30:00,29 ,10.71546,72.85118,35.55626,18.46042
nsacmbeC1.c1,1998,0815:30:00,28 , 6.61764,70.67459,33.81997, 17.6777
nsacmbeC1.c1,1998,0816:30:00,28 ,4.808123,63.51951, 28.9188,15.56237
nsacmbeC1.c1,1998,0817:30:00,25 ,4.585634, 52.9279,20.60858,10.60686
nsacmbeC1.c1,1998,0818:30:00,24 ,4.966788,37.65575,16.00138,7.991115
nsacmbeC1.c1,1998,0819:30:00,17 ,2.819144,21.77736,10.74259,5.329554
nsacmbeC1.c1,1998,0820:30:00,17 ,0.012479,11.99797,6.064769,3.355578
nsacmbeC1.c1,1998,0821:30:00,17 ,       0, 6.31692,2.023727,2.143544
nsacmbeC1.c1,1998,0822:30:00,19 ,       0,3.828571,0.754231,1.192781
nsacmbeC1.c1,1998,0823:30:00,23 ,       0,1.795611,0.178965,0.461435