datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,05 0:30:00,23 ,1.046159,4.070061,2.526648, 0.90035
sgpcmbeC1.c1,2002,05 1:30:00,22 ,1.007706,4.034577,2.406837,0.857547
sgpcmbeC1.c1,2002,05 2:30:00,22 , 1.00031,4.066914, 2.38729,0.846146
sgpcmbeC1.c1,2002,05 3:30:00,22 ,0.993542,4.104693,2.408357,0.904199
sgpcmbeC1.c1,2002,05 4:30:00,23 ,0.907942,4.152894, 2.43025,0.908163
sgpcmbeC1.c1,2002,05 5:30:00,23 ,0.876336,4.052946,2.388964,0.852256
sgpcmbeC1.c1,2002,05 6:30:00,23 ,0.930151,3.993263,2.390958,0.848528
sgpcmbeC1.c1,2002,05 7:30:00,22 ,0.945305,3.866318,2.401256,0.902147
sgpcmbeC1.c1,2002,05 8:30:00,24 , 0.93411,3.729815,2.383831,0.878694
sgpcmbeC1.c1,2002,05 9:30:00,24 ,0.868603, 3.81256,2.418178,0.907781
sgpcmbeC1.c1,2002,0510:30:00,24 ,0.922945,3.915155,2.477014,0.950192
sgpcmbeC1.c1,2002,0511:30:00,24 ,0.948278,4.045711,2.486982,0.968485
sgpcmbeC1.c1,2002,0512:30:00,24 ,0.968523,4.179033,2.554721, 1.02782
sgpcmbeC1.c1,2002,0513:30:00,23 ,0.992122,4.404141,2.527782,1.031137
sgpcmbeC1.c1,2002,0514:30:00,23 ,1.002783,4.513906,2.498435,1.039025
sgpcmbeC1.c1,2002,0515:30:00,23 , 1.09477,4.483576,2.496347,1.014676
sgpcmbeC1.c1,2002,0516:30:00,24 ,1.155805,4.377481,2.548273,0.961942
sgpcmbeC1.c1,2002,0517:30:00,24 ,1.107044,4.262315,2.513066,0.892165
sgpcmbeC1.c1,2002,0518:30:00,22 , 1.13611,3.745329,2.541182,0.797214
sgpcmbeC1.c1,2002,0519:30:00,23 , 1.09107,3.765099,2.557839, 0.79502
sgpcmbeC1.c1,2002,0520:30:00,23 ,0.990294,3.671811,2.490666,0.801266
sgpcmbeC1.c1,2002,0521:30:00,23 ,0.973177,3.699389,2.446017,0.831621
sgpcmbeC1.c1,2002,0522:30:00,23 ,1.015596,4.003318, 2.47321,0.879015
sgpcmbeC1.c1,2002,0523:30:00,23 ,1.046321,4.356482,  2.5374,0.950291