datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,08 0:30:00,31 ,       0,0.057605,0.002534, 0.01089
sgpcmbeC1.c1,2003,08 1:30:00,31 ,       0,0.182922,0.013712,0.043729
sgpcmbeC1.c1,2003,08 2:30:00,31 ,       0,0.341342,0.025392,0.070511
sgpcmbeC1.c1,2003,08 3:30:00,31 ,       0,0.607826, 0.03265,0.115712
sgpcmbeC1.c1,2003,08 4:30:00,31 ,       0,0.435087,0.035206,0.095611
sgpcmbeC1.c1,2003,08 5:30:00,31 ,       0,2.411268, 0.65789,0.670832
sgpcmbeC1.c1,2003,08 6:30:00,31 , 0.57528,17.13564,10.67584,4.985401
sgpcmbeC1.c1,2003,08 7:30:00,31 ,1.449359,31.65434, 14.5499,6.305251
sgpcmbeC1.c1,2003,08 8:30:00,31 ,1.343222,42.35282,16.74613,9.755123
sgpcmbeC1.c1,2003,08 9:30:00,31 ,5.142102,49.94648,14.94437,10.76775
sgpcmbeC1.c1,2003,0810:30:00,31 ,2.614619,59.47392,19.66246,17.42417
sgpcmbeC1.c1,2003,0811:30:00,31 ,2.148551,60.68111,21.78061,18.47974
sgpcmbeC1.c1,2003,0812:30:00,31 ,0.812172,84.35844,28.70193,23.22256
sgpcmbeC1.c1,2003,0813:30:00,31 ,3.502415,80.01086,32.11786,20.14786
sgpcmbeC1.c1,2003,0814:30:00,31 , 4.35789,78.40646,30.74408,20.72698
sgpcmbeC1.c1,2003,0815:30:00,31 ,7.122865,70.00523,33.12493,15.07305
sgpcmbeC1.c1,2003,0816:30:00,31 ,2.242997, 47.1597,22.00749,10.88548
sgpcmbeC1.c1,2003,0817:30:00,31 ,0.662583,34.44774, 14.4065,7.577483
sgpcmbeC1.c1,2003,0818:30:00,31 ,0.802427,25.24136,11.89021,5.711567
sgpcmbeC1.c1,2003,0819:30:00,30 ,       0,5.433036,1.463144,1.491059
sgpcmbeC1.c1,2003,0820:30:00,31 ,       0,0.038427, 0.00124,0.006902
sgpcmbeC1.c1,2003,0821:30:00,30 ,       0, 0.04395,0.002024,0.008488
sgpcmbeC1.c1,2003,0822:30:00,31 ,       0, 0.15094,0.007372,0.030067
sgpcmbeC1.c1,2003,0823:30:00,31 ,       0,0.110789,  0.0065, 0.02495