datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,06 5:30:00,30 ,       0,23.54387,11.39085,6.636135
sgpcmbeC1.c1,2000,06 6:30:00,30 ,2.949322,51.24943,20.53163,13.16266
sgpcmbeC1.c1,2000,06 7:30:00,30 ,4.390473,65.16827,22.13598,16.39699
sgpcmbeC1.c1,2000,06 8:30:00,30 ,2.388353,84.01486, 31.5336,22.13643
sgpcmbeC1.c1,2000,06 9:30:00,30 ,1.246294,108.1024, 44.2291,31.42109
sgpcmbeC1.c1,2000,0610:30:00,30 ,0.719307,133.1412, 48.0686,41.07027
sgpcmbeC1.c1,2000,0611:30:00,30 ,0.448026,207.2258,  49.693,40.91212
sgpcmbeC1.c1,2000,0612:30:00,30 ,2.189259,147.8024,61.53638,41.32841
sgpcmbeC1.c1,2000,0613:30:00,30 ,0.987476,162.9438,55.40468, 40.9062
sgpcmbeC1.c1,2000,0614:30:00,30 ,1.215027,144.9676,44.60401,32.55158
sgpcmbeC1.c1,2000,0615:30:00,30 ,2.327683,101.0809,43.76144,30.06413
sgpcmbeC1.c1,2000,0616:30:00,30 ,3.502656,97.05623,31.74608,27.30659
sgpcmbeC1.c1,2000,0617:30:00,30 ,3.360982,60.20123,24.79491,16.52908
sgpcmbeC1.c1,2000,0618:30:00,30 ,6.044549,60.63272, 20.3881,11.86576
sgpcmbeC1.c1,2000,0619:30:00,30 ,2.063895,23.11706,12.46727,5.308065
sgpcmbeC1.c1,2000,0620:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0623:30:00,30 ,       0,       0,       0,       0