datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 5:30:00,31 ,       0,16.05769,2.737565,4.442092
sgpcmbeC1.c1,2004,05 6:30:00,31 ,       0,58.62203,18.74764,20.99592
sgpcmbeC1.c1,2004,05 7:30:00,25 ,       0,82.52292,34.78698,27.58884
sgpcmbeC1.c1,2004,05 8:30:00,27 , 0.10707, 138.171, 50.2404,39.64469
sgpcmbeC1.c1,2004,05 9:30:00,25 ,0.189862,111.8719,41.71191,31.14813
sgpcmbeC1.c1,2004,0510:30:00,25 ,0.678758,260.0031, 99.3165,81.49065
sgpcmbeC1.c1,2004,0511:30:00,25 ,0.277788,295.7315,126.4108,104.1841
sgpcmbeC1.c1,2004,0512:30:00,26 ,0.010366,297.3782,129.4744,112.2373
sgpcmbeC1.c1,2004,0513:30:00,27 ,       0,291.6942, 111.654,99.92699
sgpcmbeC1.c1,2004,0514:30:00,27 ,       0,297.5107,97.78799,95.03954
sgpcmbeC1.c1,2004,0515:30:00,25 ,       0, 209.521,90.59179,70.26209
sgpcmbeC1.c1,2004,0516:30:00,27 , 0.02734,187.9347,69.67577,44.50049
sgpcmbeC1.c1,2004,0517:30:00,25 , 0.00903,135.9335,56.67093,29.35838
sgpcmbeC1.c1,2004,0518:30:00,31 ,       0,49.65465,26.33101,18.64294
sgpcmbeC1.c1,2004,0519:30:00,31 ,       0,12.84531,2.851787,3.499061
sgpcmbeC1.c1,2004,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0521:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0522:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0523:30:00,31 ,       0,       0,       0,       0