datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1997,01 0:30:00,31 ,       0,0.483658,0.058312,0.106107
twpcmbeC1.c1,1997,01 1:30:00,30 ,       0, 0.39332, 0.06113,0.087358
twpcmbeC1.c1,1997,01 2:30:00,31 ,       0,0.259553,0.051104,0.067019
twpcmbeC1.c1,1997,01 3:30:00,31 ,       0,    0.21,0.043416,0.056745
twpcmbeC1.c1,1997,01 4:30:00,31 ,       0,0.192182,0.042809,0.059928
twpcmbeC1.c1,1997,01 5:30:00,31 ,       0, 0.35065,0.052305,0.086564
twpcmbeC1.c1,1997,01 6:30:00,31 ,6.447851,35.40751,  19.336,7.091641
twpcmbeC1.c1,1997,01 7:30:00,31 ,7.287407,61.07535,30.22088,12.52266
twpcmbeC1.c1,1997,01 8:30:00,31 ,5.409828,65.88503,34.21499,16.21129
twpcmbeC1.c1,1997,01 9:30:00,31 ,6.236319,71.35672,34.77822,17.41276
twpcmbeC1.c1,1997,0110:30:00,31 ,6.955411,130.6835,48.24333,32.01843
twpcmbeC1.c1,1997,0111:30:00,31 ,6.917906,112.8528,47.61029,28.10854
twpcmbeC1.c1,1997,0112:30:00,31 ,6.542568,127.4002,51.41281,36.67602
twpcmbeC1.c1,1997,0113:30:00,31 ,2.858696,155.0894,62.28601, 43.7333
twpcmbeC1.c1,1997,0114:30:00,31 , 6.85168,134.2702,51.62109,35.99924
twpcmbeC1.c1,1997,0115:30:00,31 ,2.273084, 75.3609,35.71922,21.00498
twpcmbeC1.c1,1997,0116:30:00,31 ,7.385119,93.71989,33.14371,19.72374
twpcmbeC1.c1,1997,0117:30:00,31 ,1.734768,55.08481,25.17209,14.41555
twpcmbeC1.c1,1997,0118:30:00,31 , 1.23362,16.03834,8.289417,4.903428
twpcmbeC1.c1,1997,0119:30:00,31 ,       0,0.561153,0.084042,0.127542
twpcmbeC1.c1,1997,0120:30:00,31 ,       0, 0.37471,0.060985,0.086858
twpcmbeC1.c1,1997,0121:30:00,31 ,       0,0.393971,0.056313,0.090028
twpcmbeC1.c1,1997,0122:30:00,31 ,       0,0.222562, 0.05336,0.070378
twpcmbeC1.c1,1997,0123:30:00,31 ,       0,0.237471,0.045708, 0.06562