datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,09 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 5:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 6:30:00,30 ,0.014313,21.57537, 9.23603,6.241047
sgpcmbeC1.c1,2005,09 7:30:00,30 ,0.001202,53.40174,36.58953,17.71086
sgpcmbeC1.c1,2005,09 8:30:00,30 ,0.513091, 132.599,58.44813,31.68308
sgpcmbeC1.c1,2005,09 9:30:00,29 ,28.35014,191.1288,68.77581,38.70951
sgpcmbeC1.c1,2005,0910:30:00,30 ,18.00101,241.7331,75.71885,56.54024
sgpcmbeC1.c1,2005,0911:30:00,30 ,13.02426,228.1255, 83.3219,73.77766
sgpcmbeC1.c1,2005,0912:30:00,30 ,3.468479,294.3758,73.91223,85.31323
sgpcmbeC1.c1,2005,0913:30:00,30 ,2.316871,230.4943,62.54273,64.71171
sgpcmbeC1.c1,2005,0914:30:00,30 ,0.289014,235.4008,86.09167, 67.4014
sgpcmbeC1.c1,2005,0915:30:00,30 , 0.23367,234.2779,67.04198, 45.4659
sgpcmbeC1.c1,2005,0916:30:00,30 ,0.005577,114.6145,50.84914,26.39004
sgpcmbeC1.c1,2005,0917:30:00,30 , 0.01706,69.23824,39.27843,15.19492
sgpcmbeC1.c1,2005,0918:30:00,30 ,0.004378,19.95462,6.301239,6.105494
sgpcmbeC1.c1,2005,0919:30:00,28 ,       0,1.258633,0.044951,0.237859
sgpcmbeC1.c1,2005,0920:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0921:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0922:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0923:30:00,26 ,       0,       0,       0,       0