datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,07 0:30:00,31 ,       0,0.812278,0.046882,0.182814
sgpcmbeC1.c1,1998,07 1:30:00,31 ,       0,1.828253,0.076514,0.339441
sgpcmbeC1.c1,1998,07 2:30:00,31 ,       0,1.518106,0.069464,0.278423
sgpcmbeC1.c1,1998,07 3:30:00,31 ,       0,0.336252,0.022144,0.079897
sgpcmbeC1.c1,1998,07 4:30:00,31 ,       0,0.993256,0.056298,0.220133
sgpcmbeC1.c1,1998,07 5:30:00,31 , 0.33909,15.91264,7.940241,4.549926
sgpcmbeC1.c1,1998,07 6:30:00,31 ,1.833904,84.36777,52.03761,21.19715
sgpcmbeC1.c1,1998,07 7:30:00,31 ,10.05057,185.4671,101.0116,40.44485
sgpcmbeC1.c1,1998,07 8:30:00,31 ,45.91622,316.6148,151.8955,63.06305
sgpcmbeC1.c1,1998,07 9:30:00,31 ,96.81677,360.5898,187.1577,72.43854
sgpcmbeC1.c1,1998,0710:30:00,31 ,109.1559,463.7315,213.5221,95.54156
sgpcmbeC1.c1,1998,0711:30:00,31 , 120.784,499.7927,245.0428,118.2203
sgpcmbeC1.c1,1998,0712:30:00,31 ,116.6299,452.4052,243.2932,103.7172
sgpcmbeC1.c1,1998,0713:30:00,31 , 113.486,508.2719,240.3507,108.7736
sgpcmbeC1.c1,1998,0714:30:00,31 ,108.6412,390.8562,223.8544,90.32862
sgpcmbeC1.c1,1998,0715:30:00,31 ,99.61107,379.8343,207.1833,80.18465
sgpcmbeC1.c1,1998,0716:30:00,31 ,37.13131,250.8892,150.3493,50.08045
sgpcmbeC1.c1,1998,0717:30:00,31 ,18.05194,183.4928,115.8741,35.72963
sgpcmbeC1.c1,1998,0718:30:00,31 ,22.88437,116.9146,68.03435,16.63777
sgpcmbeC1.c1,1998,0719:30:00,31 ,3.924069,25.55354,15.70056,5.531366
sgpcmbeC1.c1,1998,0720:30:00,31 ,       0, 0.40643,0.013111,0.072997
sgpcmbeC1.c1,1998,0721:30:00,31 ,       0,0.327228,0.010556,0.058772
sgpcmbeC1.c1,1998,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0723:30:00,31 ,       0,0.093799,0.003026,0.016847