datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 5:30:00,31 ,       0,6.514179,2.313604,2.033673
sgpcmbeC1.c1,2002,08 6:30:00,31 ,       0,30.82116,18.29792,8.108278
sgpcmbeC1.c1,2002,08 7:30:00,31 ,       0,59.74554,20.89455,15.91291
sgpcmbeC1.c1,2002,08 8:30:00,31 ,1.321367,64.33283,20.89959,17.75012
sgpcmbeC1.c1,2002,08 9:30:00,31 ,1.233752,78.83375,24.21215,23.74395
sgpcmbeC1.c1,2002,0810:30:00,31 ,0.716157,105.9726,22.86407, 25.7782
sgpcmbeC1.c1,2002,0811:30:00,31 ,0.635917,184.1549,34.94404,41.02983
sgpcmbeC1.c1,2002,0812:30:00,31 ,1.083265,160.8814,33.08272, 30.9797
sgpcmbeC1.c1,2002,0813:30:00,31 , 1.01905,131.1913,35.16304,33.49718
sgpcmbeC1.c1,2002,0814:30:00,31 ,1.100582,90.57908,37.16881,26.30936
sgpcmbeC1.c1,2002,0815:30:00,31 ,0.823325, 74.3775,23.47129,18.69681
sgpcmbeC1.c1,2002,0816:30:00,31 ,1.835717,100.8805,21.11358,20.49494
sgpcmbeC1.c1,2002,0817:30:00,31 , 2.97115,62.70151,19.97126,11.77755
sgpcmbeC1.c1,2002,0818:30:00,31 ,8.401438,56.37982, 21.2779,8.347009
sgpcmbeC1.c1,2002,0819:30:00,31 ,       0, 22.1481,5.805076,5.424724
sgpcmbeC1.c1,2002,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0823:30:00,31 ,       0,       0,       0,       0