datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,06 0:30:00,30 ,0.501971,9.228261,  2.7514,2.166937
sgpcmbeC1.c1,2003,06 1:30:00,30 ,0.529651,9.733983,2.690142,2.330909
sgpcmbeC1.c1,2003,06 2:30:00,30 ,0.385212,16.31253,2.911334,3.359785
sgpcmbeC1.c1,2003,06 3:30:00,30 ,0.416468,17.11998,4.185286,4.567326
sgpcmbeC1.c1,2003,06 4:30:00,30 ,0.583889,23.01812,4.724276,5.165295
sgpcmbeC1.c1,2003,06 5:30:00,30 ,0.288876, 23.4681,4.616548,5.018696
sgpcmbeC1.c1,2003,06 6:30:00,30 ,0.812746,  23.536,3.948516,4.350673
sgpcmbeC1.c1,2003,06 7:30:00,30 ,0.951336,13.56015,5.186783,3.679623
sgpcmbeC1.c1,2003,06 8:30:00,30 ,0.979604,15.57959, 4.63088,4.115115
sgpcmbeC1.c1,2003,06 9:30:00,30 ,0.833831,15.06543, 4.72614,3.612325
sgpcmbeC1.c1,2003,0610:30:00,30 ,0.692058,9.829365, 3.97107,2.466111
sgpcmbeC1.c1,2003,0611:30:00,30 ,0.615533,9.041223,3.604154,2.043935
sgpcmbeC1.c1,2003,0612:30:00,30 ,1.025615,10.96588,3.603213,2.502017
sgpcmbeC1.c1,2003,0613:30:00,30 ,0.729695,8.961223,3.938757,2.427325
sgpcmbeC1.c1,2003,0614:30:00,30 ,0.857962, 7.95997,3.476829,1.933429
sgpcmbeC1.c1,2003,0615:30:00,30 ,0.852993,11.16578,3.947436,2.757738
sgpcmbeC1.c1,2003,0616:30:00,30 ,0.838086,14.43856,3.812815,3.165322
sgpcmbeC1.c1,2003,0617:30:00,30 ,0.644349,12.65888,3.941696,3.410492
sgpcmbeC1.c1,2003,0618:30:00,30 ,0.735318,15.26167,3.870272,3.270866
sgpcmbeC1.c1,2003,0619:30:00,30 ,0.497294,17.22594,3.841182,3.529418
sgpcmbeC1.c1,2003,0620:30:00,30 ,0.455986,15.00985,3.481573,3.390162
sgpcmbeC1.c1,2003,0621:30:00,30 ,0.493168,15.56479,3.943712,4.398855
sgpcmbeC1.c1,2003,0622:30:00,30 ,0.587823, 13.4523,  3.6165,3.805965
sgpcmbeC1.c1,2003,0623:30:00,30 ,0.519806,23.65188,4.198338,5.594301