datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,07 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,07 5:30:00,27 , 0.00204, 9.64803,  2.5301,2.321736
sgpcmbeC1.c1,2006,07 6:30:00,27 ,0.186071,112.1026,52.54586,33.14701
sgpcmbeC1.c1,2006,07 7:30:00,27 ,0.464279,281.7057,154.7113,97.47611
sgpcmbeC1.c1,2006,07 8:30:00,27 ,1.554169,477.6445,295.2181,167.1567
sgpcmbeC1.c1,2006,07 9:30:00,28 ,0.541702,628.4178,405.3969,228.7102
sgpcmbeC1.c1,2006,0710:30:00,28 ,0.520798, 758.658,518.2857, 281.054
sgpcmbeC1.c1,2006,0711:30:00,28 ,0.229706,846.1787,558.7816,309.1979
sgpcmbeC1.c1,2006,0712:30:00,28 ,0.301651,881.7252,602.3619,270.3478
sgpcmbeC1.c1,2006,0713:30:00,28 , 0.52813,855.5522,560.0639,290.9796
sgpcmbeC1.c1,2006,0714:30:00,28 ,0.247162,782.5427,512.8711,267.9643
sgpcmbeC1.c1,2006,0715:30:00,28 ,0.260849, 649.019,468.0212,189.3064
sgpcmbeC1.c1,2006,0716:30:00,28 ,0.034744,491.5416,347.3995,145.9642
sgpcmbeC1.c1,2006,0717:30:00,28 ,       0,310.9238,216.6057,89.07564
sgpcmbeC1.c1,2006,0718:30:00,28 ,0.063978,134.7292,82.89802,36.71854
sgpcmbeC1.c1,2006,0719:30:00,28 ,       0,15.71082,6.388604,4.085823
sgpcmbeC1.c1,2006,0720:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0721:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0722:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0723:30:00,27 ,       0,       0,       0,       0