datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1998,01 0:30:00,31 ,       0, 0.53353,0.081669,0.127439
twpcmbeC1.c1,1998,01 1:30:00,31 ,       0,0.332528,0.080615,0.114721
twpcmbeC1.c1,1998,01 2:30:00,31 ,       0,0.189066,0.052236,0.068162
twpcmbeC1.c1,1998,01 3:30:00,31 ,       0,0.198377,0.046931,0.060366
twpcmbeC1.c1,1998,01 4:30:00,31 ,       0,0.115755,0.018909,0.033238
twpcmbeC1.c1,1998,01 5:30:00,31 ,       0,0.045071,0.006827,0.012293
twpcmbeC1.c1,1998,01 6:30:00,31 ,       0,28.64745,9.228045,10.11754
twpcmbeC1.c1,1998,01 7:30:00,31 ,       0,106.9662,49.80463, 36.9249
twpcmbeC1.c1,1998,01 8:30:00,31 ,       0,205.6885,94.16431,58.27262
twpcmbeC1.c1,1998,01 9:30:00,31 , 1.53292,225.5493,109.9882,75.36826
twpcmbeC1.c1,1998,0110:30:00,31 ,1.533217,308.7816,150.3595,94.30996
twpcmbeC1.c1,1998,0111:30:00,31 ,2.802309,340.3737,169.3141,117.4398
twpcmbeC1.c1,1998,0112:30:00,31 ,0.239068,349.7029,174.9306,97.28154
twpcmbeC1.c1,1998,0113:30:00,30 ,0.125683, 319.511,171.7411,101.2506
twpcmbeC1.c1,1998,0114:30:00,30 ,0.031873,303.7341,139.0067,80.34847
twpcmbeC1.c1,1998,0115:30:00,30 ,0.070484,241.2715,99.70272,69.43344
twpcmbeC1.c1,1998,0116:30:00,30 ,       0,166.9636,65.73734,51.69269
twpcmbeC1.c1,1998,0117:30:00,31 ,       0,85.45254,28.14797,27.65296
twpcmbeC1.c1,1998,0118:30:00,31 ,       0,4.743764,0.686263,1.293273
twpcmbeC1.c1,1998,0119:30:00,30 ,       0,0.052709,0.005812,0.013478
twpcmbeC1.c1,1998,0120:30:00,31 ,       0,0.412061,0.025159,0.075427
twpcmbeC1.c1,1998,0121:30:00,31 ,       0,0.240519,0.037533,  0.0586
twpcmbeC1.c1,1998,0122:30:00,31 ,       0, 0.25091,0.049839,0.075723
twpcmbeC1.c1,1998,0123:30:00,30 ,       0,0.363197,0.070951,0.098895