datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2006,05 0:30:00,31 ,       0,0.590426,0.059624,0.164038
twpcmbeC1.c1,2006,05 1:30:00,30 ,       0,0.238573,0.013439,0.052058
twpcmbeC1.c1,2006,05 2:30:00,31 ,       0,0.459529,0.017057,0.083054
twpcmbeC1.c1,2006,05 3:30:00,31 ,       0, 0.29561, 0.02217,0.065146
twpcmbeC1.c1,2006,05 4:30:00,31 ,       0,0.099487,0.005316,0.021046
twpcmbeC1.c1,2006,05 5:30:00,31 ,       0,0.926668,0.158955,0.210884
twpcmbeC1.c1,2006,05 6:30:00,31 ,10.43178,68.80577,32.73696,15.65401
twpcmbeC1.c1,2006,05 7:30:00,31 ,6.583025,124.8477,61.31606,34.30997
twpcmbeC1.c1,2006,05 8:30:00,31 ,10.02803,199.1866,102.4713,52.27541
twpcmbeC1.c1,2006,05 9:30:00,31 ,7.657793,205.8904,95.44144,56.19999
twpcmbeC1.c1,2006,0510:30:00,31 ,14.76923,352.6407,157.8554,96.61953
twpcmbeC1.c1,2006,0511:30:00,31 ,15.40999,377.6303,142.2059,119.3309
twpcmbeC1.c1,2006,0512:30:00,31 ,4.344214,342.8034,120.0523,105.5779
twpcmbeC1.c1,2006,0513:30:00,31 ,6.915539,282.8755, 118.708,85.50831
twpcmbeC1.c1,2006,0514:30:00,31 ,5.973079,330.3472,139.1962,93.53242
twpcmbeC1.c1,2006,0515:30:00,31 ,4.551544,241.7057,106.0875,67.56664
twpcmbeC1.c1,2006,0516:30:00,31 ,3.097082,165.8278,  61.578,43.63745
twpcmbeC1.c1,2006,0517:30:00,31 ,0.965918, 93.0032,41.59742,24.79596
twpcmbeC1.c1,2006,0518:30:00,31 ,       0,3.734692,2.233126, 0.79943
twpcmbeC1.c1,2006,0519:30:00,31 ,       0,0.102102, 0.00633,0.024523
twpcmbeC1.c1,2006,0520:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,2006,0521:30:00,31 ,       0,0.279454,0.029718,0.075497
twpcmbeC1.c1,2006,0522:30:00,31 ,       0,0.221805,0.025048,0.062546
twpcmbeC1.c1,2006,0523:30:00,31 ,       0,0.511145, 0.06407,0.151301