datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,06 0:30:00,27 ,       0, 1.38382,0.209322,0.468239
sgpcmbeC1.c1,2005,06 1:30:00,27 ,       0,1.589807,0.116423,0.375353
sgpcmbeC1.c1,2005,06 2:30:00,27 ,       0,1.603009,0.117299, 0.42265
sgpcmbeC1.c1,2005,06 3:30:00,27 ,       0,1.286615,0.072642,0.275133
sgpcmbeC1.c1,2005,06 4:30:00,27 ,       0,0.696224,0.076012,0.191979
sgpcmbeC1.c1,2005,06 5:30:00,27 ,       0,29.45607,18.44222,8.248021
sgpcmbeC1.c1,2005,06 6:30:00,27 ,4.257466,112.3425,50.52557,23.10994
sgpcmbeC1.c1,2005,06 7:30:00,27 , 4.47994,140.8862,64.52692, 29.3388
sgpcmbeC1.c1,2005,06 8:30:00,28 , 37.9194,277.0622,84.65434,50.42716
sgpcmbeC1.c1,2005,06 9:30:00,28 ,39.91196,253.7798,88.08133,62.69521
sgpcmbeC1.c1,2005,0610:30:00,28 ,31.93501,260.1514,104.0275,78.14419
sgpcmbeC1.c1,2005,0611:30:00,28 ,14.29569,354.7462,123.0175,113.7575
sgpcmbeC1.c1,2005,0612:30:00,27 ,2.535987,338.3189,122.5075,119.9601
sgpcmbeC1.c1,2005,0613:30:00,27 ,14.79672,394.7585,145.5483,123.3938
sgpcmbeC1.c1,2005,0614:30:00,27 ,29.35804,386.0498,130.8703,103.8356
sgpcmbeC1.c1,2005,0615:30:00,27 ,41.66327,259.7317,103.1618,69.34837
sgpcmbeC1.c1,2005,0616:30:00,27 ,15.88302,206.0535,92.55719,57.11147
sgpcmbeC1.c1,2005,0617:30:00,27 ,16.92565,147.7313,66.04895,25.44734
sgpcmbeC1.c1,2005,0618:30:00,27 , 6.65476,64.20868,44.91014,16.70729
sgpcmbeC1.c1,2005,0619:30:00,27 ,       0,33.63642,20.92272,9.095296
sgpcmbeC1.c1,2005,0620:30:00,27 ,       0,0.956088,0.123784,0.253597
sgpcmbeC1.c1,2005,0621:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0622:30:00,27 ,       0,0.986898,0.070701,0.254885
sgpcmbeC1.c1,2005,0623:30:00,27 ,       0,1.450453,0.069263,0.287589