data("SimulatedSmoothSeries")The names of each column indicate the threshold ($J0$). For example, the 3rd column, named J0.2, has a threshold of $J0=2$, and thus 0-valued wavelet coefficients for all mother wavelet coefficients finer than level 2.
These smooth series were generated using 'wd' and 'wr' with the family="DaubLeAsymm", filter.number=8, bc="periodic" options in the 'wavethresh' package.
Also see wavethresh-package