datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,07 0:30:00,25 ,2.662498,4.953287, 3.83735,0.568401
sgpcmbeC1.c1,2003,07 1:30:00,25 ,2.737991,4.874332,3.812889,0.560346
sgpcmbeC1.c1,2003,07 2:30:00,25 ,2.566536,4.726713,3.785759,0.559904
sgpcmbeC1.c1,2003,07 3:30:00,25 ,2.563071,5.180867,3.801421,0.618872
sgpcmbeC1.c1,2003,07 4:30:00,24 ,2.505322,  4.7521,3.736612,0.604188
sgpcmbeC1.c1,2003,07 5:30:00,24 ,2.529734,5.088742,3.744374,0.648467
sgpcmbeC1.c1,2003,07 6:30:00,24 ,  2.5013,5.029271,3.732739,0.649996
sgpcmbeC1.c1,2003,07 7:30:00,23 ,2.466285, 4.77646,3.614947,0.598891
sgpcmbeC1.c1,2003,07 8:30:00,24 ,2.520309,4.915747,3.627889,0.639422
sgpcmbeC1.c1,2003,07 9:30:00,25 ,2.541944,5.011509,3.632434,  0.6578
sgpcmbeC1.c1,2003,0710:30:00,25 ,2.446848,4.880852,3.607922,0.655454
sgpcmbeC1.c1,2003,0711:30:00,25 ,2.469593,5.015491,3.621283,0.685042
sgpcmbeC1.c1,2003,0712:30:00,25 ,2.585166,5.046156,3.636105, 0.67662
sgpcmbeC1.c1,2003,0713:30:00,25 , 2.64296,5.075986,3.655582,0.664818
sgpcmbeC1.c1,2003,0714:30:00,25 ,2.566875,5.116705,3.701162,0.655012
sgpcmbeC1.c1,2003,0715:30:00,25 ,2.458599,4.907391, 3.68297,0.628394
sgpcmbeC1.c1,2003,0716:30:00,25 ,2.440281,4.880425,3.746441,0.647064
sgpcmbeC1.c1,2003,0717:30:00,25 ,2.455003,4.788579,3.741818,0.616469
sgpcmbeC1.c1,2003,0718:30:00,24 ,2.842602, 4.80564,3.774727,0.551052
sgpcmbeC1.c1,2003,0719:30:00,24 ,2.963962,4.880551,3.793947, 0.54456
sgpcmbeC1.c1,2003,0720:30:00,24 ,2.920514,5.261378,3.808761,0.583154
sgpcmbeC1.c1,2003,0721:30:00,24 ,2.919861, 5.17064,3.812687,0.540628
sgpcmbeC1.c1,2003,0722:30:00,24 ,2.796214,4.865989,3.789926,0.522273
sgpcmbeC1.c1,2003,0723:30:00,25 ,2.643756,4.856457,3.808651,0.539426