datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,03 0:30:00,25 , 0.65437,3.607776,1.647639,0.974392
sgpcmbeC1.c1,2004,03 1:30:00,24 ,0.649794,3.857657,1.559307,0.962954
sgpcmbeC1.c1,2004,03 2:30:00,25 ,0.639252,3.817462,1.666924,1.056908
sgpcmbeC1.c1,2004,03 3:30:00,24 ,0.675085,3.827341,1.616605,0.976042
sgpcmbeC1.c1,2004,03 4:30:00,24 ,0.635206,4.060366,  1.6499,0.985979
sgpcmbeC1.c1,2004,03 5:30:00,25 ,0.569094,4.581793,1.764876,1.103157
sgpcmbeC1.c1,2004,03 6:30:00,24 , 0.43827,4.126725,1.671891,0.986384
sgpcmbeC1.c1,2004,03 7:30:00,24 , 0.43679,3.679167,1.683334,0.973902
sgpcmbeC1.c1,2004,03 8:30:00,24 ,0.427037,3.383661,1.646989,0.915133
sgpcmbeC1.c1,2004,03 9:30:00,25 ,0.438082,3.416867,1.620636,0.901643
sgpcmbeC1.c1,2004,0310:30:00,25 ,0.466791,3.531783, 1.63207,0.899177
sgpcmbeC1.c1,2004,0311:30:00,25 ,0.495658,3.620342,1.625966, 0.87278
sgpcmbeC1.c1,2004,0312:30:00,25 ,0.500275,3.307345,1.606489, 0.79864
sgpcmbeC1.c1,2004,0313:30:00,25 ,0.539181,3.335479,1.606284,0.778523
sgpcmbeC1.c1,2004,0314:30:00,25 ,0.596798,3.409579,1.657613,0.795107
sgpcmbeC1.c1,2004,0315:30:00,25 ,0.626657,3.452526,1.658395,0.769125
sgpcmbeC1.c1,2004,0316:30:00,26 ,0.666169,3.750929,1.770776,0.851665
sgpcmbeC1.c1,2004,0317:30:00,26 ,0.609152,3.475213,1.745809,0.788823
sgpcmbeC1.c1,2004,0318:30:00,26 ,0.584736,3.366188,1.663441,0.795262
sgpcmbeC1.c1,2004,0319:30:00,26 ,0.606202,3.280231,1.681309,0.814692
sgpcmbeC1.c1,2004,0320:30:00,26 ,0.610266,3.391013,1.692594,0.872578
sgpcmbeC1.c1,2004,0321:30:00,25 ,0.624852,3.513807,1.649723,0.893953
sgpcmbeC1.c1,2004,0322:30:00,25 ,0.632696,3.647311,1.653579,0.938623
sgpcmbeC1.c1,2004,0323:30:00,25 ,0.622425,3.685138, 1.63222,0.943554