datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,04 0:30:00,30 ,0.471822,2.388804,1.697869,0.468619
sgpcmbeC1.c1,2005,04 1:30:00,30 ,0.199877,2.426458,  1.7081,0.497483
sgpcmbeC1.c1,2005,04 2:30:00,30 ,0.558409,2.570886,1.558844,0.494744
sgpcmbeC1.c1,2005,04 3:30:00,30 ,0.757775,2.185401,1.582235,0.412818
sgpcmbeC1.c1,2005,04 4:30:00,30 ,1.012451,2.484689,1.703281,0.426846
sgpcmbeC1.c1,2005,04 5:30:00,30 ,0.828398, 2.70455,1.535142,0.385516
sgpcmbeC1.c1,2005,04 6:30:00,30 ,       0,83.15001,26.71026,26.84229
sgpcmbeC1.c1,2005,04 7:30:00,30 ,0.058521, 268.452,119.7682, 97.6806
sgpcmbeC1.c1,2005,04 8:30:00,30 ,0.030907,474.9174,239.0407,162.8069
sgpcmbeC1.c1,2005,04 9:30:00,30 ,0.637497,652.3326,347.8414, 252.278
sgpcmbeC1.c1,2005,0410:30:00,30 ,0.295509, 794.817,442.0819,300.4434
sgpcmbeC1.c1,2005,0411:30:00,30 ,0.578491,894.4756,508.7473,322.5452
sgpcmbeC1.c1,2005,0412:30:00,30 ,0.101738,925.3151,506.6492,319.4444
sgpcmbeC1.c1,2005,0413:30:00,30 ,0.164299,888.6376,471.9598,323.8801
sgpcmbeC1.c1,2005,0414:30:00,30 ,0.011688, 791.988, 439.787,300.0141
sgpcmbeC1.c1,2005,0415:30:00,30 ,0.056503,647.4269,321.3991,243.6848
sgpcmbeC1.c1,2005,0416:30:00,30 ,0.197205, 464.852,241.2652,153.4847
sgpcmbeC1.c1,2005,0417:30:00,30 ,       0,260.2386,112.9445,88.87575
sgpcmbeC1.c1,2005,0418:30:00,30 ,       0,75.39895,20.47358,20.70037
sgpcmbeC1.c1,2005,0419:30:00,30 ,0.640497,2.145637,1.365831,0.280971
sgpcmbeC1.c1,2005,0420:30:00,30 ,0.878579,2.322404,1.703524,0.366946
sgpcmbeC1.c1,2005,0421:30:00,30 ,1.075344,2.363128,1.680939,0.342047
sgpcmbeC1.c1,2005,0422:30:00,30 ,0.908376,2.577289, 1.80148,0.435088
sgpcmbeC1.c1,2005,0423:30:00,30 , 0.77265,2.656323,1.812664,0.528149