datastream, year, month, tod,n, min, max, mean, std twpcmbeC1.c1,1999,08 0:30:00,31 ,0.345361,2.416433,1.002587,0.556456 twpcmbeC1.c1,1999,08 1:30:00,31 ,0.360405,2.411433,0.981838,0.496419 twpcmbeC1.c1,1999,08 2:30:00,31 ,0.390476,4.615274,1.275506,0.981973 twpcmbeC1.c1,1999,08 3:30:00,31 ,0.375841,4.555282,1.243974,0.927035 twpcmbeC1.c1,1999,08 4:30:00,31 ,0.328533,3.413148,1.183438,0.719713 twpcmbeC1.c1,1999,08 5:30:00,31 ,0.208245,4.547889,1.333914,0.995036 twpcmbeC1.c1,1999,08 6:30:00,31 ,0.712725,6.046173,2.795516, 1.47537 twpcmbeC1.c1,1999,08 7:30:00,31 ,1.474999,11.10011,6.191447,2.490033 twpcmbeC1.c1,1999,08 8:30:00,31 ,1.373796,12.81197,6.569347,2.776806 twpcmbeC1.c1,1999,08 9:30:00,31 ,1.551782,18.85642,6.539654, 3.7227 twpcmbeC1.c1,1999,0810:30:00,31 ,1.146402,22.62986,5.798807,4.164669 twpcmbeC1.c1,1999,0811:30:00,31 ,1.230273,13.97385, 5.92486,2.989808 twpcmbeC1.c1,1999,0812:30:00,31 ,1.795954,20.04558,5.894643,4.685646 twpcmbeC1.c1,1999,0813:30:00,31 , 1.35465,18.90697,7.723735,4.942913 twpcmbeC1.c1,1999,0814:30:00,30 ,1.020684,21.93395,5.691347,4.396884 twpcmbeC1.c1,1999,0815:30:00,31 ,0.414734,16.27918,4.950379,3.390215 twpcmbeC1.c1,1999,0816:30:00,31 ,0.583036, 15.2166,5.488935,4.062768 twpcmbeC1.c1,1999,0817:30:00,31 ,0.270695, 11.2832,4.591259,3.283513 twpcmbeC1.c1,1999,0818:30:00,31 ,0.378928,8.535972,2.193374, 1.88417 twpcmbeC1.c1,1999,0819:30:00,31 ,0.301916,5.592562,1.095483,0.921448 twpcmbeC1.c1,1999,0820:30:00,31 ,0.320254,2.764518,1.085811,0.541963 twpcmbeC1.c1,1999,0821:30:00,31 ,0.317354,5.551345,1.210176,1.178528 twpcmbeC1.c1,1999,0822:30:00,31 ,0.295081,2.443068,0.946415,0.493155 twpcmbeC1.c1,1999,0823:30:00,31 ,0.314488,3.240288,0.966419,0.582256