wavethresh (version 4.7.3)

print.nv: Print a node vector object, also used by several other functions to obtain packet list information

Description

Ostensibly prints out node vector information, but also produces packet indexing information for several functions.

Usage

# S3 method for nv
print(x, printing = TRUE, verbose = FALSE, ...)

Value

A list containing two components: indexlist and rvector. The former is a list of packets that were selected at each resolution level. Rvector encodes a list of "rotate/non-rotate" instructions in binary. At each selected packet level a decision has to be made whether to select the LH or RH basis element, and this information is stored in rvector.

Arguments

x

The nv.object that you wish to print

printing

If FALSE then nothing is printed. This argument is here because the results of the printing are also useful to many other routines where you want the results but are not bothered by actually seeing the results

verbose

Not actually used

...

Other arguments

Author

G P Nason

Details

A node vector contains selected basis information, but this is stored as a tree object. Hence, it is not immediately obvious which basis elements have been stored. This function produces a list of the packets at each resolution level that have been selected in the basis. This information is so useful to other functions that the function is used even when printing is not the primary objective.

See Also

InvBasis.wst, nv.object, plot.wp

Examples

v <- rnorm(128)
vwst <- wst(v)
vnv <- MaNoVe(vwst)
print(vnv)
#Level :  6  Action is  R (getpacket Index:  1 )
#Level :  5  Action is  L (getpacket Index:  2 )
#Level :  4  Action is  L (getpacket Index:  4 )
#Level :  3  Action is  R (getpacket Index:  9 )
#Level :  2  Action is  L (getpacket Index:  18 )
#There are  6  reconstruction steps
#
# The L or R indicate whether to move to the left or the right basis function
# when descending the node tree
#
#