datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,06 0:30:00,30 ,       0,  0.0268,0.001769,0.006731
sgpcmbeC1.c1,1999,06 1:30:00,30 ,       0,0.047076,0.001569,0.008595
sgpcmbeC1.c1,1999,06 2:30:00,30 ,       0,0.045264,0.002007,0.008613
sgpcmbeC1.c1,1999,06 3:30:00,30 ,       0,0.004676, 0.00016,0.000853
sgpcmbeC1.c1,1999,06 4:30:00,30 ,       0, 0.15464,0.016188,0.037601
sgpcmbeC1.c1,1999,06 5:30:00,30 ,0.033095,39.37893,16.05964,10.49636
sgpcmbeC1.c1,1999,06 6:30:00,30 ,1.870881,195.6105,97.99204,62.97536
sgpcmbeC1.c1,1999,06 7:30:00,30 , 3.29175,396.8506,230.7234,131.9612
sgpcmbeC1.c1,1999,06 8:30:00,30 ,15.99028,591.7822,373.5529, 178.743
sgpcmbeC1.c1,1999,06 9:30:00,30 ,61.83996,750.0315,534.4497,218.2306
sgpcmbeC1.c1,1999,0610:30:00,30 ,2.182793, 876.557,601.4065,272.9983
sgpcmbeC1.c1,1999,0611:30:00,30 , 6.13663,971.8168,655.8411,300.2764
sgpcmbeC1.c1,1999,0612:30:00,30 ,12.09224, 984.116,632.5238,320.4889
sgpcmbeC1.c1,1999,0613:30:00,30 ,35.20392,950.9672,603.3912,293.2571
sgpcmbeC1.c1,1999,0614:30:00,30 ,19.53198,869.9955, 569.409,262.2129
sgpcmbeC1.c1,1999,0615:30:00,30 , 4.63922,  754.48, 493.049,221.3795
sgpcmbeC1.c1,1999,0616:30:00,30 ,2.651176,578.1015,396.4121,146.8729
sgpcmbeC1.c1,1999,0617:30:00,30 ,3.295388,386.6433,243.4593,112.1596
sgpcmbeC1.c1,1999,0618:30:00,30 , 1.23745,245.9216,109.4358,60.66069
sgpcmbeC1.c1,1999,0619:30:00,30 ,0.097238,45.74257,21.11142, 11.9231
sgpcmbeC1.c1,1999,0620:30:00,30 ,       0,1.673775,0.070596,0.303971
sgpcmbeC1.c1,1999,0621:30:00,30 ,       0,0.001758,0.000068,0.000323
sgpcmbeC1.c1,1999,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0623:30:00,30 ,       0,0.022793,0.000782,0.004159