datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,05 0:30:00,31 ,0.442722,12.30263,3.167162,3.567594
sgpcmbeC1.c1,2003,05 1:30:00,31 ,0.423187, 22.1984,4.421921,6.050048
sgpcmbeC1.c1,2003,05 2:30:00,31 ,0.412644,19.96532,4.090499,5.282598
sgpcmbeC1.c1,2003,05 3:30:00,31 ,0.256446,26.04026,4.369303,6.243355
sgpcmbeC1.c1,2003,05 4:30:00,31 ,0.316586,22.59728,5.035993,6.483004
sgpcmbeC1.c1,2003,05 5:30:00,31 ,0.293046,26.02174, 5.48094,6.607342
sgpcmbeC1.c1,2003,05 6:30:00,31 ,0.376358,36.14788,6.672571,7.855888
sgpcmbeC1.c1,2003,05 7:30:00,31 ,0.591101,26.77473,4.700503,5.352099
sgpcmbeC1.c1,2003,05 8:30:00,31 ,0.545284,11.26328,3.627962,2.578016
sgpcmbeC1.c1,2003,05 9:30:00,31 ,0.596734,16.75915,5.174618,4.339597
sgpcmbeC1.c1,2003,0510:30:00,31 ,0.415889,11.16276,4.124458,2.553305
sgpcmbeC1.c1,2003,0511:30:00,31 ,0.559929,16.55847,4.356894,4.489187
sgpcmbeC1.c1,2003,0512:30:00,31 ,0.827913, 12.0841,3.747001,3.098341
sgpcmbeC1.c1,2003,0513:30:00,31 ,0.402786, 14.3383,3.477205,3.182218
sgpcmbeC1.c1,2003,0514:30:00,31 ,0.482258,15.96785, 4.16591,3.586664
sgpcmbeC1.c1,2003,0515:30:00,31 ,0.647929,17.10639,4.189128,3.902338
sgpcmbeC1.c1,2003,0516:30:00,31 ,0.434052,21.03303,4.446969,4.431337
sgpcmbeC1.c1,2003,0517:30:00,31 ,0.683193,12.83431,3.587483,  3.0398
sgpcmbeC1.c1,2003,0518:30:00,31 ,0.967876,19.55182, 4.18389,4.529831
sgpcmbeC1.c1,2003,0519:30:00,31 ,0.567095,18.55791,3.664099,3.712642
sgpcmbeC1.c1,2003,0520:30:00,31 ,0.704518,21.05791,3.762066,4.323717
sgpcmbeC1.c1,2003,0521:30:00,31 ,0.580291,19.45195,4.830795,5.045054
sgpcmbeC1.c1,2003,0522:30:00,31 ,0.418637,20.34274,3.574825, 4.59223
sgpcmbeC1.c1,2003,0523:30:00,31 ,0.314061,17.63801,2.711072,3.738106