datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,07 0:30:00,28 ,       0,201.3729,13.26944,40.92356
sgpcmbeC1.c1,2006,07 1:30:00,28 ,       0,215.1229, 18.1267,48.47048
sgpcmbeC1.c1,2006,07 2:30:00,27 ,       0,66.02089,6.423109,14.12854
sgpcmbeC1.c1,2006,07 3:30:00,27 ,       0,722.0888,36.87427,138.9428
sgpcmbeC1.c1,2006,07 4:30:00,27 ,       0,1055.099,60.67482,206.6353
sgpcmbeC1.c1,2006,07 5:30:00,28 ,       0,535.5245,29.43496,  103.99
sgpcmbeC1.c1,2006,07 6:30:00,28 ,       0,541.6215,27.28926,103.3605
sgpcmbeC1.c1,2006,07 7:30:00,29 ,       0,400.1904,30.53654, 85.2532
sgpcmbeC1.c1,2006,07 8:30:00,30 ,       0,154.7881,17.28188,41.83268
sgpcmbeC1.c1,2006,07 9:30:00,29 ,       0,1505.264,76.23574,283.4665
sgpcmbeC1.c1,2006,0710:30:00,30 ,       0,2180.901, 113.264,412.2013
sgpcmbeC1.c1,2006,0711:30:00,29 ,       0,2094.193,113.4322,403.9387
sgpcmbeC1.c1,2006,0712:30:00,30 ,       0,858.6661,40.19654,158.0665
sgpcmbeC1.c1,2006,0713:30:00,29 ,       0, 1992.38,89.59406,369.6464
sgpcmbeC1.c1,2006,0714:30:00,27 ,       0,752.9668,51.51797,152.5716
sgpcmbeC1.c1,2006,0715:30:00,26 ,       0, 1802.57,80.64865,352.0909
sgpcmbeC1.c1,2006,0716:30:00,27 ,       0,895.6757,39.27852, 171.537
sgpcmbeC1.c1,2006,0717:30:00,28 ,       0,323.8237,16.68764,62.41825
sgpcmbeC1.c1,2006,0718:30:00,28 ,       0,386.0122,25.43106,84.72702
sgpcmbeC1.c1,2006,0719:30:00,28 ,       0,846.2433,35.13695,159.4061
sgpcmbeC1.c1,2006,0720:30:00,28 ,       0,231.9953,18.15364,50.08897
sgpcmbeC1.c1,2006,0721:30:00,27 ,       0,369.4353,20.12065,71.62659
sgpcmbeC1.c1,2006,0722:30:00,27 ,       0,158.7603,12.58119,34.35387
sgpcmbeC1.c1,2006,0723:30:00,28 ,       0,211.8612,14.86044,44.91607