datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,07 0:30:00,31 ,0.852774, 10.5104,2.273158,1.863402
sgpcmbeC1.c1,2007,07 1:30:00,31 ,0.871716,17.97826,2.981449,3.843161
sgpcmbeC1.c1,2007,07 2:30:00,31 ,0.816881,15.58195,3.236281,3.739098
sgpcmbeC1.c1,2007,07 3:30:00,31 ,0.505547,12.23591,3.160265,2.806443
sgpcmbeC1.c1,2007,07 4:30:00,31 ,0.810584,17.70008,4.475474,5.139682
sgpcmbeC1.c1,2007,07 5:30:00,31 ,0.614292,15.60559,4.056384,4.444328
sgpcmbeC1.c1,2007,07 6:30:00,31 ,0.468403,16.05962,3.161754,3.214998
sgpcmbeC1.c1,2007,07 7:30:00,31 ,0.893624,10.83174,3.529493,2.815669
sgpcmbeC1.c1,2007,07 8:30:00,31 ,1.271325,14.59525,3.949989,2.986939
sgpcmbeC1.c1,2007,07 9:30:00,31 ,1.020919, 12.3694,5.097802,3.313066
sgpcmbeC1.c1,2007,0710:30:00,31 ,1.676129,17.02655, 4.68732,3.971295
sgpcmbeC1.c1,2007,0711:30:00,29 ,1.536873,13.07863,5.223449,2.598818
sgpcmbeC1.c1,2007,0712:30:00,28 ,1.587234,14.34284,5.325814,3.390937
sgpcmbeC1.c1,2007,0713:30:00,28 ,0.905706, 9.44764,3.883488,1.953628
sgpcmbeC1.c1,2007,0714:30:00,26 ,1.313398,12.40386,4.478749,3.040029
sgpcmbeC1.c1,2007,0715:30:00,30 ,1.281096,15.76074,4.168276,3.353221
sgpcmbeC1.c1,2007,0716:30:00,29 , 1.03774,14.70102,4.275116,3.298861
sgpcmbeC1.c1,2007,0717:30:00,30 , 0.68709,17.32253,3.442771,3.741981
sgpcmbeC1.c1,2007,0718:30:00,30 ,1.057819,14.46081, 3.87115,  3.2972
sgpcmbeC1.c1,2007,0719:30:00,31 ,0.930007,12.81596,3.771958,2.554129
sgpcmbeC1.c1,2007,0720:30:00,31 ,0.970581,13.12858,3.099084,2.913958
sgpcmbeC1.c1,2007,0721:30:00,31 ,0.772139,12.65881,2.871994,3.094814
sgpcmbeC1.c1,2007,0722:30:00,31 ,0.849537,18.67713,3.600098,4.008942
sgpcmbeC1.c1,2007,0723:30:00,31 , 0.87047,14.84106,2.693524,2.959638