datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,25 ,1.771021, 4.01821,   3.158,0.608843
sgpcmbeC1.c1,2005,06 1:30:00,25 ,1.743422,4.959849,3.200834,0.725005
sgpcmbeC1.c1,2005,06 2:30:00,25 ,1.671574,5.885154,3.213781,0.848206
sgpcmbeC1.c1,2005,06 3:30:00,25 ,1.653337,4.486115,3.152552,0.661366
sgpcmbeC1.c1,2005,06 4:30:00,25 ,1.763355,4.155127,3.063043,0.610871
sgpcmbeC1.c1,2005,06 5:30:00,25 ,1.971139,4.881117,3.092058,0.660743
sgpcmbeC1.c1,2005,06 6:30:00,24 ,1.956663,3.975181,3.020854,0.527181
sgpcmbeC1.c1,2005,06 7:30:00,24 ,2.103837,4.187175,3.117904,0.584497
sgpcmbeC1.c1,2005,06 8:30:00,25 ,2.225626,4.150381,3.159045,0.555603
sgpcmbeC1.c1,2005,06 9:30:00,27 ,2.255559,4.155078,3.187466,0.500455
sgpcmbeC1.c1,2005,0610:30:00,28 ,2.294374,4.914621,3.240586,0.573235
sgpcmbeC1.c1,2005,0611:30:00,28 , 2.17553,4.883674,3.281534,0.587733
sgpcmbeC1.c1,2005,0612:30:00,28 ,2.304353,4.137138,3.220584,0.513789
sgpcmbeC1.c1,2005,0613:30:00,28 ,2.203164,4.220201,3.254223,0.544121
sgpcmbeC1.c1,2005,0614:30:00,28 ,2.177839,4.589387,3.312768,0.560128
sgpcmbeC1.c1,2005,0615:30:00,28 ,2.133649,4.449608,3.347024,0.552743
sgpcmbeC1.c1,2005,0616:30:00,27 ,2.191044,4.301447, 3.32935,0.538948
sgpcmbeC1.c1,2005,0617:30:00,27 , 1.63524, 4.37189,3.264788,0.582797
sgpcmbeC1.c1,2005,0618:30:00,27 , 1.56814,4.573031,3.290817,0.614046
sgpcmbeC1.c1,2005,0619:30:00,27 ,1.542392,5.074244,3.268461,0.694166
sgpcmbeC1.c1,2005,0620:30:00,27 ,1.586893,5.809403,3.295513,0.756149
sgpcmbeC1.c1,2005,0621:30:00,27 ,1.648782,7.295211,3.403979,0.989595
sgpcmbeC1.c1,2005,0622:30:00,27 ,1.575077,6.740312,3.429248,0.946135
sgpcmbeC1.c1,2005,0623:30:00,26 ,1.724172,5.153589,3.313137,0.717721