datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1999,01 0:30:00,31 ,       0,0.198367,0.055195,0.067526
twpcmbeC1.c1,1999,01 1:30:00,31 ,       0,0.266035,0.058844,0.072394
twpcmbeC1.c1,1999,01 2:30:00,31 ,       0,0.253135,0.052638, 0.07461
twpcmbeC1.c1,1999,01 3:30:00,31 ,       0, 0.18008, 0.03678,0.055239
twpcmbeC1.c1,1999,01 4:30:00,31 ,       0,0.189367,0.046271,0.068862
twpcmbeC1.c1,1999,01 5:30:00,31 ,       0,0.436317,  0.0984,0.132072
twpcmbeC1.c1,1999,01 6:30:00,31 , 3.41263,35.53954,19.85842,7.058632
twpcmbeC1.c1,1999,01 7:30:00,31 ,6.229639,61.92617,26.57663, 15.1253
twpcmbeC1.c1,1999,01 8:30:00,31 ,3.579067,100.4197,42.65102,24.15831
twpcmbeC1.c1,1999,01 9:30:00,31 , 14.2865,91.52961,46.15136,19.47703
twpcmbeC1.c1,1999,0110:30:00,31 ,7.274145,141.2006,51.92469,34.67936
twpcmbeC1.c1,1999,0111:30:00,31 , 4.93251,138.2703,45.20799, 34.3088
twpcmbeC1.c1,1999,0112:30:00,31 ,2.659956,129.5176,46.72799,30.60854
twpcmbeC1.c1,1999,0113:30:00,31 ,1.569819,126.7744,49.63576,37.04879
twpcmbeC1.c1,1999,0114:30:00,31 ,1.746523,169.5778,45.07766,36.54012
twpcmbeC1.c1,1999,0115:30:00,31 , 3.86539,97.90176, 39.4431,28.59262
twpcmbeC1.c1,1999,0116:30:00,31 ,3.957966,72.94251,27.41226,18.33582
twpcmbeC1.c1,1999,0117:30:00,31 ,4.718579, 56.7191,25.55322,12.74779
twpcmbeC1.c1,1999,0118:30:00,31 ,0.625137,21.83641,10.37382,4.373677
twpcmbeC1.c1,1999,0119:30:00,31 ,       0, 0.28969,0.025931,0.080902
twpcmbeC1.c1,1999,0120:30:00,31 ,       0,0.273814,0.036611, 0.08093
twpcmbeC1.c1,1999,0121:30:00,31 ,       0,0.206125,0.032797,0.059419
twpcmbeC1.c1,1999,0122:30:00,30 ,       0,0.182259,0.038613,0.058543
twpcmbeC1.c1,1999,0123:30:00,31 ,       0,0.200635,0.039158,0.056656