datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,07 0:30:00,21 ,2.820153,5.382202,4.129154, 0.80684
sgpcmbeC1.c1,2001,07 1:30:00,21 ,2.632455,5.587402,4.139657,0.839158
sgpcmbeC1.c1,2001,07 2:30:00,21 ,2.662249,5.651473,4.137234,0.842791
sgpcmbeC1.c1,2001,07 3:30:00,21 ,2.789297,5.406484, 4.08637,0.766164
sgpcmbeC1.c1,2001,07 4:30:00,21 ,2.954355,5.310343,4.095876,0.745787
sgpcmbeC1.c1,2001,07 5:30:00,21 ,3.062813,5.298275,4.112809,0.704654
sgpcmbeC1.c1,2001,07 6:30:00,20 , 3.07092,5.260077,4.138702,0.705611
sgpcmbeC1.c1,2001,07 7:30:00,21 ,2.978431,5.158764, 4.08132,0.663757
sgpcmbeC1.c1,2001,07 8:30:00,22 ,3.022934,5.182661,4.072516,0.683319
sgpcmbeC1.c1,2001,07 9:30:00,22 ,3.010112,5.236913,4.047433,0.709799
sgpcmbeC1.c1,2001,0710:30:00,22 ,2.956384,5.279984, 4.02787,0.721221
sgpcmbeC1.c1,2001,0711:30:00,22 ,2.878008,5.325472,4.021361,0.717332
sgpcmbeC1.c1,2001,0712:30:00,21 , 2.83138,4.976749, 4.01287,0.674978
sgpcmbeC1.c1,2001,0713:30:00,22 ,3.058522,5.420497,4.133671,0.707386
sgpcmbeC1.c1,2001,0714:30:00,21 , 3.04147,5.142198,4.083614,0.654644
sgpcmbeC1.c1,2001,0715:30:00,21 ,2.858554,5.131143,4.094618,0.684777
sgpcmbeC1.c1,2001,0716:30:00,21 ,3.008274,5.293107,4.155764,0.694132
sgpcmbeC1.c1,2001,0717:30:00,21 ,3.073077, 5.36712,4.172475,0.734289
sgpcmbeC1.c1,2001,0718:30:00,21 ,3.035969,5.666245,4.283564,0.792595
sgpcmbeC1.c1,2001,0719:30:00,21 ,3.021335,5.728197,4.261742,0.784911
sgpcmbeC1.c1,2001,0720:30:00,21 ,3.138806,5.701276,4.257179,0.769255
sgpcmbeC1.c1,2001,0721:30:00,21 ,3.140401,5.570041,4.240814,0.732482
sgpcmbeC1.c1,2001,0722:30:00,21 ,3.107355, 5.53552,4.206661,0.743042
sgpcmbeC1.c1,2001,0723:30:00,21 , 2.96541,5.423908,4.169355,0.781645