datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,06 0:30:00,28 ,1.703563,4.677066,2.760078,0.739372
sgpcmbeC1.c1,2006,06 1:30:00,28 ,1.678716,4.341933,2.744341,0.716635
sgpcmbeC1.c1,2006,06 2:30:00,29 ,1.652908,4.488641,2.799144,0.752374
sgpcmbeC1.c1,2006,06 3:30:00,29 ,1.652283,4.679927,2.807574,0.800095
sgpcmbeC1.c1,2006,06 4:30:00,28 ,1.667187,4.568799,2.811494, 0.81474
sgpcmbeC1.c1,2006,06 5:30:00,28 ,1.620379, 4.37008,2.821733,0.799612
sgpcmbeC1.c1,2006,06 6:30:00,26 ,1.527963,4.464963,2.835255,0.811372
sgpcmbeC1.c1,2006,06 7:30:00,26 ,  1.5971,4.307275,2.852979,0.778962
sgpcmbeC1.c1,2006,06 8:30:00,29 ,1.698928,4.711231,2.892455,0.846982
sgpcmbeC1.c1,2006,06 9:30:00,30 ,1.734459,4.977222,2.881942,0.856785
sgpcmbeC1.c1,2006,0610:30:00,30 ,1.723402,4.675916,2.817742,0.767558
sgpcmbeC1.c1,2006,0611:30:00,30 ,1.629812,4.707786,2.820406,0.753996
sgpcmbeC1.c1,2006,0612:30:00,30 ,1.528842,4.599767,2.860315,0.729502
sgpcmbeC1.c1,2006,0613:30:00,30 ,1.677459,4.187971,2.859361,0.664005
sgpcmbeC1.c1,2006,0614:30:00,30 , 1.79777,4.108528,2.870688, 0.64255
sgpcmbeC1.c1,2006,0615:30:00,30 ,1.848789,3.985584,2.890375,0.644003
sgpcmbeC1.c1,2006,0616:30:00,30 ,1.842637,4.137062,2.882261,0.641356
sgpcmbeC1.c1,2006,0617:30:00,30 ,1.793967,4.340106,2.883933,0.650314
sgpcmbeC1.c1,2006,0618:30:00,30 ,1.850889,4.447602,  2.9146,0.703461
sgpcmbeC1.c1,2006,0619:30:00,30 ,1.791826,4.436797, 2.89924,0.717525
sgpcmbeC1.c1,2006,0620:30:00,30 ,1.788841,4.555045,2.864375,0.764379
sgpcmbeC1.c1,2006,0621:30:00,30 ,1.651416,4.707565,2.828304,0.816769
sgpcmbeC1.c1,2006,0622:30:00,29 , 1.87971,4.338333,2.756984,0.739993
sgpcmbeC1.c1,2006,0623:30:00,28 ,1.841926,4.426125,2.712635,0.712965