datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1999,07 0:30:00,30 ,       0,0.136588,0.018127,0.042409
twpcmbeC1.c1,1999,07 1:30:00,30 ,       0,0.377929,0.029017,0.081618
twpcmbeC1.c1,1999,07 2:30:00,30 ,       0,0.268916,0.012701,0.052538
twpcmbeC1.c1,1999,07 3:30:00,31 ,       0,0.372981,0.017216,0.072055
twpcmbeC1.c1,1999,07 4:30:00,31 ,       0,       0,       0,       0
twpcmbeC1.c1,1999,07 5:30:00,31 ,       0,0.431502,0.013919,  0.0775
twpcmbeC1.c1,1999,07 6:30:00,31 ,0.441943,53.02826,23.51775,13.06471
twpcmbeC1.c1,1999,07 7:30:00,31 ,1.749304,150.1642,53.41134,32.41239
twpcmbeC1.c1,1999,07 8:30:00,31 ,11.01696, 238.052,91.71519,56.85823
twpcmbeC1.c1,1999,07 9:30:00,31 ,8.302258, 247.479,118.1234, 63.5269
twpcmbeC1.c1,1999,0710:30:00,31 ,24.43202, 301.756,  153.72,86.07496
twpcmbeC1.c1,1999,0711:30:00,31 ,10.91672, 302.678, 123.198,74.81571
twpcmbeC1.c1,1999,0712:30:00,31 ,7.152111,331.5158,148.0628,84.72191
twpcmbeC1.c1,1999,0713:30:00,31 ,16.01246,340.1833,128.4104,80.14117
twpcmbeC1.c1,1999,0714:30:00,31 ,35.67358,244.4956,122.8532,66.84005
twpcmbeC1.c1,1999,0715:30:00,31 ,11.35688,203.5609,96.09332,50.82604
twpcmbeC1.c1,1999,0716:30:00,31 ,9.663111, 169.083,76.82324,44.01331
twpcmbeC1.c1,1999,0717:30:00,31 ,2.369609, 86.3814, 39.2093,26.28644
twpcmbeC1.c1,1999,0718:30:00,31 ,0.070742,13.36581,4.447554,2.720786
twpcmbeC1.c1,1999,0719:30:00,31 ,       0,0.209789,0.006767,0.037679
twpcmbeC1.c1,1999,0720:30:00,31 ,       0,0.320335,0.012758,0.058657
twpcmbeC1.c1,1999,0721:30:00,31 ,       0,0.418308,0.020552,0.083618
twpcmbeC1.c1,1999,0722:30:00,31 ,       0,0.270778,0.013979,0.051968
twpcmbeC1.c1,1999,0723:30:00,31 ,       0, 0.48251, 0.03674,0.105532