Energy concentration of coefficients under wavelet/cosine packet transfrom.
This function is an S Version 3 generic (see Methods);
method functions can be written to handle specific
S Version 3 classes of data. Classes which already
have methods for this function include:
`crystal.list, crystal.vector, crystal.matrix, wp.table cp.table,cp.table.list
wp.table.list, rob.dwt, rob.dwt.list'
x axis location of the rectangle in which to put the legend, same as the
x argument in S-PLUS function
legend. The default is
x.legend=sqrt(n) if
log="x";
x.legend=n/2 otherwise, where
n=sample.size.
y.legend
y axis location of the rectangle in which to put the legend, same as the
y argument in S-PLUS function
legend. The default is
y.legend=0.8log10(ymin)/(1-ymin) if
log="y";
y.legend=0.2 otherwise,
where
ymin=min(y).
Graphical parameters may also be supplied as arguments to
this function (see
).
SIDE EFFECTS:
produces a plot of two curves: solid line for wavelet coefficients and
dashed line for the original data.