datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,03 0:30:00,26 ,       0,0.550424,0.084694,0.151834
sgpcmbeC1.c1,2006,03 1:30:00,28 ,       0,0.547996,  0.0861,  0.1384
sgpcmbeC1.c1,2006,03 2:30:00,28 ,       0,0.434864,0.063558,0.121417
sgpcmbeC1.c1,2006,03 3:30:00,27 ,       0,0.560108,0.077074, 0.14651
sgpcmbeC1.c1,2006,03 4:30:00,26 ,       0,0.612337,0.067928,0.144906
sgpcmbeC1.c1,2006,03 5:30:00,27 ,       0,0.677918,0.057912,0.155441
sgpcmbeC1.c1,2006,03 6:30:00,31 ,       0,10.39761, 2.40757,3.085627
sgpcmbeC1.c1,2006,03 7:30:00,30 ,0.690675, 33.1688,11.77881, 7.82401
sgpcmbeC1.c1,2006,03 8:30:00,30 , 0.87942,55.27947,13.73115,10.55607
sgpcmbeC1.c1,2006,03 9:30:00,30 ,1.116323,53.86236,15.64685,12.53517
sgpcmbeC1.c1,2006,0310:30:00,30 ,1.669605,52.60102,17.59718,14.32767
sgpcmbeC1.c1,2006,0311:30:00,31 ,1.709351,56.73865,17.40336,15.87323
sgpcmbeC1.c1,2006,0312:30:00,31 ,0.631303,54.39086,14.06212,14.52443
sgpcmbeC1.c1,2006,0313:30:00,31 ,2.174366,55.48472,16.78311, 16.1944
sgpcmbeC1.c1,2006,0314:30:00,31 ,1.883814,47.27606, 15.5718,13.08682
sgpcmbeC1.c1,2006,0315:30:00,31 ,0.672449,47.19278,13.66701,10.28885
sgpcmbeC1.c1,2006,0316:30:00,31 ,0.693239,34.30625,14.10766,8.570521
sgpcmbeC1.c1,2006,0317:30:00,31 ,0.216082,23.55655,10.86381,7.096306
sgpcmbeC1.c1,2006,0318:30:00,31 ,       0,13.05431,5.463686,3.830876
sgpcmbeC1.c1,2006,0319:30:00,21 ,       0, 0.26593,0.043937,0.085752
sgpcmbeC1.c1,2006,0320:30:00,25 ,       0,0.477782,0.023792,0.097429
sgpcmbeC1.c1,2006,0321:30:00,26 ,       0,0.238044,0.017776,0.056593
sgpcmbeC1.c1,2006,0322:30:00,24 ,       0,0.503291,0.029211,0.108736
sgpcmbeC1.c1,2006,0323:30:00,26 ,       0,0.329852,0.035416,0.091492