plot.imwd {wavethresh} | R Documentation |
Draw a picture of the 2D wavelet coefficients using image
Description
This function images 2D the absolute values discrete wavelet transform coefficients arising from a imwd.object
object.
Usage
## S3 method for class 'imwd'
plot(x, scaling = "by.level", co.type = "abs",
package = "R", plot.type = "mallat", arrangement = c(3, 3),
transform = FALSE, tfunction = sqrt, ...)
## S3 method for class 'imwdc'
plot(x, verbose=FALSE, ...)
Arguments
x |
The 2D imwd object you wish to depict |
scaling |
How coefficient scaling is performed. The options
are |
co.type |
Can be |
package |
Can be |
plot.type |
If this argument is |
arrangement |
If |
transform |
If FALSE then the coefficients are plotted as they
are (subject to the |
tfunction |
If |
verbose |
Print out informative messages |
... |
Supply other arguments to the call to the |
Details
Description says all
Value
If the package="S"
argument is set then a matrix is returned
containing the image that would have been plotted (and this only works
if the plot.type="mallat"
argument is set also.
Author(s)
G P Nason
See Also
imwd
, imwd.object
, threshold.imwd
Examples
data(lennon)
lwd <- imwd(lennon)
## Not run: plot(lwd)
## Not run: plot(lwd, col=grey(seq(from=0, to=1, length=100)), transform=TRUE)