atrous, cp.crystal, decompose, dwt, molecule, mra,
,
nd.dwt, rob.dwt, wp.crystal, wpt.2d
.
crystal.names(x, J, Jrow=J, Jcol=Jrow, depth.first=F, style="pretty", case="lower") is.2d.name(x) is.pretty.names(x) icrystal.names(x, J, Jrow=J, Jcol=Jrow, depth.first=F)
"atrous"
,
"cp.crystal"
,
"decompose"
,
"dwt"
,
"molecule"
,
"mra"
,
"nd.dwt"
,
"rob.dwt"
,
"wp.crystal"
, or
"wpt.2d"
, in which case
the crystal names will be extracted.
x
is a character string.
depth.first=TRUE
, the output crystal names will
be re-ordered in terms of frequency centers.
"pretty"
or
"filter"
,
see below for details.
is.2d.name
returns
TRUE
if
x
is a vector of 2D crystal.names,
and
FALSE
otherwise.
is.pretty.names
returns
TRUE
if
x
is a vector of "pretty" crystal names,
and
FALSE
otherwise.
icrystal.names
returns the internal crystal names. This function is not
intended for high-level use.
When
x
is a character string, the corresponding type of crystal names will be
created. Available crystal name types are:
"cp", "wp", "dwt", "mra", "subband", "block.dct"
,
"dwt.2d", "cp.quad", "wp.quad", "subband.2d", "block.dct.2d"
.
When
x="cp", "block.dct"
, the crystal names are of the form:
cj.b
(if
case="lower"
) or
Cj.b
(if
case="upper"
), where
j
is the resolution level,
b
is the block number and
c
(or
C
) stands
for "cosine packet". Argument
style
is ignored.
When
x="dwt"
and
style="pretty"
, the crystal names are of the form:
sj, dj
(if
case="lower"
) or
Sj, Dj
(if
case="upper"
), where
j
is the resolution level,
s
(or
S
) stands for "smooth" and
d
(or
D
) stands for "detail".
When
x="wp", "subband"
and
style="pretty"
, the crystal names are of the form:
wj.b
(if
case="lower"
) or
Wj.b
(if
case="upper"
), where
j
is the resolution level,
b
is the block number (under "sequency" order)
and
w
(or
W
) stands for "wavelet packet".
When
x="mra"
and
style="pretty"
, the crystal names are of the form:
Sj
, where
j
is the resolution level. Argument
case
is ignored.
When style != "pretty", the crystal names will be strings of
L
s
and
H
s, where
L
is for "low-pass" and
H
is for "high-pass".
The length of the string equals to the resolution level and the
combination of the
L
s and
H
s determines the block number.
When
x="dwt.2d", "cp.quad", "wp.quad", "subband.2d", "block.dct.2d"
,
2D crystal names are created and of the form
1D.name-1D.name
.
x.dwt <- dwt(rnorm(64)) crystal.names(x.dwt) # extract crystal names crystal.names(x.dwt, "pretty") # extract crystal names, in "pretty" style crystal.names("wp", 3) # create crystal names for wp table crystal.names("block.dct.2d", 2) # create crystal names for 2D block.dct