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accessc
Get variance information from irregularly spaced wavelet decomposition object.
DESCRIPTION
This function gets information from the c
component of
an irregwd object an irregularly spaced
wavelet decomposition object.
Note that this function is not the same as accessC which obtains father wavelet coefficients from an
wd class object.
USAGE
accessc(irregwd.structure, level, boundary=F)
REQUIRED ARGUMENTS
- irregwd object
- Irregular wavelet decomposition object from which you
wish to extract parts of the
c
component from.
- level
- The level that you wish to extract. This value ranges from 0 to
the
nlevels(irregwd.structure)-1
.
OPTIONAL ARGUMENTS
- boundary
- If this argument is T then all of the boundary
correction values will be returned as well (note: the
length of the returned vector may not be a power of 2). If
boundary is false, then just the coefficients will be
returned. If the decomposition (or reconstruction) was
done with periodic boundary conditions then this option
has no effect.
VALUE
A vector of the extracted data.
DETAILS
The irregwd
function produces a irregular wavelet decomposition
(reconstruction) structure.
The c
component is stored in a similar way to the C
and D
vectors which store the father and mother wavelet
coefficients respectively. Hence to access the information the accessc
function plays a similar role to accessC
and accessD
functions.
RELEASE
Version 3.9.4 Code Copyright Arne Kovac 1997. Help Copyright Guy Nason 2004.
SEE ALSO
irregwd,
irregwd object,
threshold.irregwd,
makegrid,
plot.irregwd,
EXAMPLES
#
# Most users will not need to use this function. However, see the main
# example for the irregular wavelet denoising in the example for
# makegrid
.
#