datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,08 0:30:00,6 ,2.508529,4.515741,3.334861,0.689107
sgpcmbeC1.c1,2005,08 1:30:00,6 ,2.392022,4.731387,3.322121,0.773959
sgpcmbeC1.c1,2005,08 2:30:00,6 , 2.46405,4.669363,3.344398,0.722417
sgpcmbeC1.c1,2005,08 3:30:00,6 ,2.525065,4.642171,3.435645,0.694182
sgpcmbeC1.c1,2005,08 4:30:00,6 ,2.545558,4.811384,3.501495,0.745556
sgpcmbeC1.c1,2005,08 5:30:00,6 ,2.614277,4.910895, 3.56329,0.755522
sgpcmbeC1.c1,2005,08 6:30:00,6 ,2.725411,4.951027,  3.6534,0.725384
sgpcmbeC1.c1,2005,08 7:30:00,6 ,2.677275,4.952212,3.598467,0.746197
sgpcmbeC1.c1,2005,08 8:30:00,6 ,2.696205,4.963129,3.568222,0.765175
sgpcmbeC1.c1,2005,08 9:30:00,6 ,2.777845,4.899262,3.595551,0.702103
sgpcmbeC1.c1,2005,0810:30:00,6 ,2.725481,5.115211,3.728749,0.775692
sgpcmbeC1.c1,2005,0811:30:00,5 ,2.923353,3.965235, 3.51098,0.378718
sgpcmbeC1.c1,2005,0812:30:00,5 ,3.058833,4.086973,3.633523,0.386058
sgpcmbeC1.c1,2005,0813:30:00,5 ,3.059943, 4.12223,3.686769,0.426732
sgpcmbeC1.c1,2005,0814:30:00,6 ,1.919764,4.357066,3.427674,0.866375
sgpcmbeC1.c1,2005,0815:30:00,6 , 1.95915,4.245568,3.403712,0.827508
sgpcmbeC1.c1,2005,0816:30:00,6 ,1.930081,4.151002,3.347337,0.794833
sgpcmbeC1.c1,2005,0817:30:00,6 , 1.77306,4.161932,3.301193,0.887068
sgpcmbeC1.c1,2005,0818:30:00,6 ,2.506833,4.082546,3.354789,0.542384
sgpcmbeC1.c1,2005,0819:30:00,6 ,2.488592,4.068717,3.403058,0.548868
sgpcmbeC1.c1,2005,0820:30:00,6 ,2.606479,4.316403,3.531937,0.574678
sgpcmbeC1.c1,2005,0821:30:00,6 ,2.673174, 4.53871,3.553823,0.596988
sgpcmbeC1.c1,2005,0822:30:00,6 , 2.65247,4.508742,3.502737,0.598188
sgpcmbeC1.c1,2005,0823:30:00,6 ,2.589718,4.303014,3.383096,0.558908