datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,05 1:30:00,31 ,       0,0.104018,0.003355,0.018682
sgpcmbeC1.c1,2000,05 2:30:00,31 ,       0, 0.01693,0.000546,0.003041
sgpcmbeC1.c1,2000,05 3:30:00,31 ,       0,0.041769,0.001347,0.007502
sgpcmbeC1.c1,2000,05 4:30:00,31 ,       0,0.012853,0.000415,0.002308
sgpcmbeC1.c1,2000,05 5:30:00,30 ,       0,8.482124,3.059892,3.069045
sgpcmbeC1.c1,2000,05 6:30:00,23 ,       0,49.01325,29.21796,17.39916
sgpcmbeC1.c1,2000,05 7:30:00,22 ,14.08857,92.87748,65.24272,29.35759
sgpcmbeC1.c1,2000,05 8:30:00,21 ,31.78397, 127.286,99.59175,31.25121
sgpcmbeC1.c1,2000,05 9:30:00,21 ,14.57422, 150.608,119.9032,40.50443
sgpcmbeC1.c1,2000,0510:30:00,21 ,1.663968,167.2711,128.3954,49.35332
sgpcmbeC1.c1,2000,0511:30:00,22 ,27.33961,177.6155,135.2486,44.27733
sgpcmbeC1.c1,2000,0512:30:00,22 ,26.54111,179.3884,135.0273,44.69598
sgpcmbeC1.c1,2000,0513:30:00,22 ,53.62285,176.3978,138.0281,38.22851
sgpcmbeC1.c1,2000,0514:30:00,22 ,53.41073,166.9217,132.0399,37.39933
sgpcmbeC1.c1,2000,0515:30:00,22 , 28.2374,146.0029,110.7182,38.05357
sgpcmbeC1.c1,2000,0516:30:00,23 ,10.35098,122.6713,91.40854,31.82953
sgpcmbeC1.c1,2000,0517:30:00,23 ,6.967252,93.78655,61.10669,24.13802
sgpcmbeC1.c1,2000,0518:30:00,23 ,       0,43.96278,25.68754,11.46011
sgpcmbeC1.c1,2000,0519:30:00,30 ,       0,6.901133, 2.31614,2.156313
sgpcmbeC1.c1,2000,0520:30:00,30 ,       0,0.806847,0.033113,0.150047
sgpcmbeC1.c1,2000,0521:30:00,30 ,       0,0.184222,0.007161,0.033905
sgpcmbeC1.c1,2000,0522:30:00,30 ,       0,0.143876,0.004796,0.026268
sgpcmbeC1.c1,2000,0523:30:00,30 ,       0,0.070906,0.002364,0.012946