Plot Packet Table Coefficients.
DESCRIPTION:
Plots the coefficients for a wavelet packet table or a cosine packet table.
USAGE: 
plot(x, J=attr(x, "n.levels"), remove.low=F, grid=T,
     type="h", grid.lty=par("lty")+1, ...)
REQUIRED ARGUMENTS:
x:
a ptable object.
OPTIONAL ARGUMENTS:
J:
number of levels to be plotted.
remove.low:
logical flag indicating if remove all the smooth coefficients from the plot. When smooth coefficients dominate the detail coefficients, it is useful to set remove.low=TRUE to see the detail coefficients.
type:
a character specifying the plotting style: see the par function for available types.
grid:
if TRUE, a grid is added between the coefficient blocks (crystals). See pgrid.plot for details.
grid.lty:
integer giving the line type for the grid of crystals. See the lty argument for par.
...:
additional arguments can be passed to stack.plot.
VALUE:
a numeric vector giving the y-value centers of each level.
SIDE EFFECTS:
produces a plot of the packet coefficients.
DETAILS:
The coefficients blocks (crystals) are plotted in "sequency" order. See Wickerhauser (1994) for details.
REFERENCES:
Wickerhauser, M. V. (1994). Adapted Wavelet Analysis -- from theory to software.
SEE ALSO:
wp.table , cp.table , stack.plot .