datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,2003,06 0:30:00,30 ,       0,0.020185,0.001251,0.004006
twpcmbeC1.c1,2003,06 1:30:00,30 ,       0,0.036698,0.001814,0.006802
twpcmbeC1.c1,2003,06 2:30:00,30 ,       0,0.015648,0.000791,0.002988
twpcmbeC1.c1,2003,06 3:30:00,30 ,       0,0.067634,0.002418, 0.01235
twpcmbeC1.c1,2003,06 4:30:00,30 ,       0,       0,       0,       0
twpcmbeC1.c1,2003,06 5:30:00,30 ,       0,0.250247,0.023468,0.055774
twpcmbeC1.c1,2003,06 6:30:00,30 ,6.702108,40.00856, 19.1412,6.541295
twpcmbeC1.c1,2003,06 7:30:00,30 ,2.129417,41.27042,20.88117,12.13257
twpcmbeC1.c1,2003,06 8:30:00,30 ,2.997922,85.47286,30.28438,20.28107
twpcmbeC1.c1,2003,06 9:30:00,30 ,4.976087,90.02417,40.59165,22.68835
twpcmbeC1.c1,2003,0610:30:00,30 ,3.747784,125.3126,45.34905,32.47927
twpcmbeC1.c1,2003,0611:30:00,30 ,1.951179,103.0823,47.92966,28.60371
twpcmbeC1.c1,2003,0612:30:00,30 ,0.925658,178.7975,58.74741,43.83324
twpcmbeC1.c1,2003,0613:30:00,29 , 4.96383,110.5177,54.52231,30.85294
twpcmbeC1.c1,2003,0614:30:00,30 ,1.469309,73.37234,31.64351,18.59339
twpcmbeC1.c1,2003,0615:30:00,30 ,4.013108,71.22111,  31.329, 19.9766
twpcmbeC1.c1,2003,0616:30:00,30 ,2.048266,101.2758,25.92407,20.38798
twpcmbeC1.c1,2003,0617:30:00,30 ,3.882266,  48.465,20.32063,9.294318
twpcmbeC1.c1,2003,0618:30:00,30 ,0.580856, 4.99922,2.966759,1.149161
twpcmbeC1.c1,2003,0619:30:00,30 ,       0, 0.05543, 0.00246,0.010552
twpcmbeC1.c1,2003,0620:30:00,30 ,       0,0.044826,  0.0021,0.008368
twpcmbeC1.c1,2003,0621:30:00,30 ,       0,0.022115,0.002107,0.005406
twpcmbeC1.c1,2003,0622:30:00,30 ,       0,0.025398,0.002936,0.006982
twpcmbeC1.c1,2003,0623:30:00,30 ,       0,0.055992, 0.00444,0.011592