datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,10 0:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 1:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 2:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 5:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 6:30:00,31 ,       0,7.131853,1.596812,1.999546
sgpcmbeC1.c1,2005,10 7:30:00,31 ,       0,55.27584,24.84336,19.86009
sgpcmbeC1.c1,2005,10 8:30:00,31 ,0.044921,109.1903,37.52786,31.44312
sgpcmbeC1.c1,2005,10 9:30:00,31 ,0.082779,  164.66,44.02163,43.19346
sgpcmbeC1.c1,2005,1010:30:00,31 ,0.145071,218.1847, 57.8467,61.80404
sgpcmbeC1.c1,2005,1011:30:00,31 ,0.290314,190.5002,41.28487,59.46932
sgpcmbeC1.c1,2005,1012:30:00,31 ,0.256983,252.1255,53.29555,70.76389
sgpcmbeC1.c1,2005,1013:30:00,31 ,0.227557,236.3571,76.22688,73.60299
sgpcmbeC1.c1,2005,1014:30:00,31 ,0.067094,212.4775,78.04253,67.13525
sgpcmbeC1.c1,2005,1015:30:00,31 ,0.015997,154.6532, 63.0324, 42.3885
sgpcmbeC1.c1,2005,1016:30:00,31 ,       0,68.49986,40.52014,20.29791
sgpcmbeC1.c1,2005,1017:30:00,31 ,       0,39.47054, 15.3479, 12.0611
sgpcmbeC1.c1,2005,1018:30:00,23 ,       0,5.859447,0.792328, 1.71109
sgpcmbeC1.c1,2005,1019:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1020:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1021:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1022:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1023:30:00,22 ,       0,       0,       0,       0