datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,27 ,       0,1.121183,0.163963,0.368663
sgpcmbeC1.c1,2005,06 1:30:00,27 ,       0,1.264018,  0.0969,0.309687
sgpcmbeC1.c1,2005,06 2:30:00,27 ,       0,1.361498,0.099841,0.359736
sgpcmbeC1.c1,2005,06 3:30:00,27 ,       0,1.201301, 0.06691,0.254845
sgpcmbeC1.c1,2005,06 4:30:00,27 ,       0,0.696224,0.075995,0.191936
sgpcmbeC1.c1,2005,06 5:30:00,27 ,       0,21.81245,13.09839,5.168587
sgpcmbeC1.c1,2005,06 6:30:00,27 ,4.245145,37.77432,18.66254,7.802026
sgpcmbeC1.c1,2005,06 7:30:00,27 ,4.230714,47.35071,19.30599,12.47621
sgpcmbeC1.c1,2005,06 8:30:00,28 ,1.734268,97.86584,27.99072, 23.2174
sgpcmbeC1.c1,2005,06 9:30:00,28 ,1.768458,76.92248,26.25946,25.37977
sgpcmbeC1.c1,2005,0610:30:00,28 ,1.390781,136.9459,40.23891,39.14663
sgpcmbeC1.c1,2005,0611:30:00,28 ,1.184896,219.3144,43.16407,52.16992
sgpcmbeC1.c1,2005,0612:30:00,27 , 1.66807,88.25056,30.78997,30.46218
sgpcmbeC1.c1,2005,0613:30:00,27 ,1.567342,137.8772, 37.6088,37.62349
sgpcmbeC1.c1,2005,0614:30:00,27 , 3.12163,127.5534,37.37438,38.15904
sgpcmbeC1.c1,2005,0615:30:00,27 , 2.47079,73.30529,28.37124,22.27803
sgpcmbeC1.c1,2005,0616:30:00,27 ,4.064613,119.7852,26.48407,27.24901
sgpcmbeC1.c1,2005,0617:30:00,27 ,2.673729, 90.9353, 19.4394,18.55178
sgpcmbeC1.c1,2005,0618:30:00,27 , 5.76534,44.74422, 16.2475,8.023847
sgpcmbeC1.c1,2005,0619:30:00,27 ,       0,24.19565,14.14477,5.693015
sgpcmbeC1.c1,2005,0620:30:00,27 ,       0,0.956088,0.121501,0.250655
sgpcmbeC1.c1,2005,0621:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0622:30:00,27 ,       0,0.771412,0.053848,0.194399
sgpcmbeC1.c1,2005,0623:30:00,27 ,       0,1.100339,0.052423,0.218017