datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,09 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,09 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,09 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,09 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,09 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,09 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,09 6:30:00,30 , 0.00887, 0.99714,0.481128,0.418567
sgpcmbeC1.c1,2003,09 7:30:00,30 ,0.004004,0.999254, 0.49039, 0.44459
sgpcmbeC1.c1,2003,09 8:30:00,30 ,0.001089, 0.99977,0.516804,0.460322
sgpcmbeC1.c1,2003,09 9:30:00,30 ,0.000541,0.999971, 0.51084, 0.45557
sgpcmbeC1.c1,2003,0910:30:00,30 ,0.000956,       1,0.518925,0.447145
sgpcmbeC1.c1,2003,0911:30:00,30 ,0.000891,       1,0.464719, 0.44871
sgpcmbeC1.c1,2003,0912:30:00,30 ,0.000858,       1,0.478356,0.450661
sgpcmbeC1.c1,2003,0913:30:00,30 ,0.001609,0.999991,0.490202,0.433839
sgpcmbeC1.c1,2003,0914:30:00,30 ,0.001474,0.999491,0.465577,0.400238
sgpcmbeC1.c1,2003,0915:30:00,30 ,0.000631,0.999862,0.472038,0.427095
sgpcmbeC1.c1,2003,0916:30:00,30 ,0.000919,  0.9998, 0.43509, 0.42709
sgpcmbeC1.c1,2003,0917:30:00,30 ,0.002619,0.999711,0.387364,0.398917
sgpcmbeC1.c1,2003,0918:30:00,21 ,0.003675,0.998371,0.312068,0.390259
sgpcmbeC1.c1,2003,0919:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0920:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0921:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0922:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2003,0923:30:00,0 ,       .,       .,       .,       .