datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,09 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,09 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,09 6:30:00,30 ,       0,27.33514,10.93287,10.40597
sgpcmbeC1.c1,2003,09 7:30:00,30 ,0.046497, 78.8019,34.59734,26.90219
sgpcmbeC1.c1,2003,09 8:30:00,30 ,0.151605,174.7267,49.11563,47.76765
sgpcmbeC1.c1,2003,09 9:30:00,30 ,       0,195.9022,51.02001,49.24264
sgpcmbeC1.c1,2003,0910:30:00,30 , 0.09898,239.4668,62.45724, 67.6006
sgpcmbeC1.c1,2003,0911:30:00,30 ,0.529663,318.7549,63.34682, 80.6815
sgpcmbeC1.c1,2003,0912:30:00,30 ,       0, 290.589,68.63878,87.14203
sgpcmbeC1.c1,2003,0913:30:00,30 ,0.135245,256.0805,79.41386,85.88074
sgpcmbeC1.c1,2003,0914:30:00,30 ,0.080688,248.5326,87.67353,78.83519
sgpcmbeC1.c1,2003,0915:30:00,30 ,       0,174.6575,70.55086,50.10175
sgpcmbeC1.c1,2003,0916:30:00,30 ,0.007566,115.3797,49.26722,30.74699
sgpcmbeC1.c1,2003,0917:30:00,30 ,0.000591,67.60754,35.10565,20.95616
sgpcmbeC1.c1,2003,0918:30:00,30 ,       0,29.31065,8.349718,10.07449
sgpcmbeC1.c1,2003,0919:30:00,30 ,       0,2.180212,0.120739,0.438014
sgpcmbeC1.c1,2003,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0923:30:00,30 ,       0,       0,       0,       0