datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,25 ,0.610923,3.209031,1.777677,0.756951
sgpcmbeC1.c1,2001,04 1:30:00,25 ,0.641824,3.407734, 1.75973,0.735749
sgpcmbeC1.c1,2001,04 2:30:00,23 ,0.716453,3.298067, 1.82775,0.712067
sgpcmbeC1.c1,2001,04 3:30:00,23 ,0.767537, 3.21873,1.796005,0.706323
sgpcmbeC1.c1,2001,04 4:30:00,23 ,0.637824,3.210227,1.779376, 0.70957
sgpcmbeC1.c1,2001,04 5:30:00,23 ,0.638323,3.016018,1.790514,0.719448
sgpcmbeC1.c1,2001,04 6:30:00,23 ,0.635564,3.201626,1.808018,0.744428
sgpcmbeC1.c1,2001,04 7:30:00,23 ,0.658073,3.408551,1.840658,0.793868
sgpcmbeC1.c1,2001,04 8:30:00,27 ,0.688578,3.844507,1.914848,0.895766
sgpcmbeC1.c1,2001,04 9:30:00,28 ,0.696755,4.094509,  1.9352,0.958327
sgpcmbeC1.c1,2001,0410:30:00,28 ,0.635971, 3.89348,1.957213,0.920042
sgpcmbeC1.c1,2001,0411:30:00,28 ,0.701675,3.664694,2.004985,0.920233
sgpcmbeC1.c1,2001,0412:30:00,28 ,0.673942,3.810923, 2.04644,0.921512
sgpcmbeC1.c1,2001,0413:30:00,28 ,0.716616,3.672804,2.083416,0.905316
sgpcmbeC1.c1,2001,0414:30:00,28 ,0.732261,3.677067,2.090265,0.881022
sgpcmbeC1.c1,2001,0415:30:00,27 ,0.716392,3.728347,2.013189,0.818907
sgpcmbeC1.c1,2001,0416:30:00,27 , 0.71398,3.480318,2.022203,0.789353
sgpcmbeC1.c1,2001,0417:30:00,27 ,0.692523,3.365581,1.999347,0.743233
sgpcmbeC1.c1,2001,0418:30:00,27 ,0.693934,3.451675,2.025682,0.729602
sgpcmbeC1.c1,2001,0419:30:00,27 ,0.663881,3.602694,2.079636,0.812704
sgpcmbeC1.c1,2001,0420:30:00,27 ,0.615332,3.441166,2.100187,0.868005
sgpcmbeC1.c1,2001,0421:30:00,27 ,0.596279,3.857644,2.078928,0.891051
sgpcmbeC1.c1,2001,0422:30:00,27 ,0.590026,3.567705,2.017318,0.863266
sgpcmbeC1.c1,2001,0423:30:00,27 ,0.611592,3.413107,1.950063, 0.81758