plot(x, grid=T, labels=F, axes=T, xlab=NULL, ylab=NULL,
     x.srt=90, y.srt=0, stretch.image=T, low.pass=T,
     power.stretch=0.5, name.style=NULL,...)

x:

an object of class crystal.matrix, which includes 2-D discrete wavelet transform, wavelet packet transform, and cosine packet transform objects.

grid:

if TRUE, a grid is added between the coefficient blocks (crystals). See pgrid.plot for details.

labels:

if TRUE, then crystal.names will be printed in the middle of the coefficient blocks.

axes:

logical flag, if TRUE axes are added.

xlab:

label for plotting below the x-axis.

ylab:

label for plotting beside the y-axis.

x.srt:

string rotation in degrees for labels in x.axis, same as srt in par, in effect when axes=TRUE.

y.srt:

string rotation in degrees for labels in y.axis, same as srt in par, in effect when axes=TRUE.

stretch.image:

logical flag, if TRUE the image is transformed to enhance the plot using the stretch function.

low.pass:

logical flag, if TRUE the smooth/low-frequency coefficients are scaled to have the same dynamic range as the remaining coefficients. Only for 2-D DWT and 2-D wavelet packet transforms.

power.stretch:

a numeric value giving the power of the transform if stretch.image is TRUE. If power.stretch=0, then image is transformed with log(abs(x)+1). Otherwise, the image is transformed with abs(x)^power.stretch.

name.style:

crystal name styles: one of the character strings "pretty" or "filter". Only for 2-D DWT and 2-D wavelet packet transforms. See crystal.names for details. The default is wavelet.options()$name.style.

...:

additional arguments may be passed to the image function.