figure108.wt.filter(wavelets)
figure108.wt.filter()所属R语言包:wavelets
Plot Multiple DWT Wavelet or Scaling Filters
绘制多个DWT小波变换或缩放过滤器
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Plots multiple DWT Wavelet or Scaling Filters similar to Figure 108 in Wavelet Methods for Time Series Analysis by Percival and Walden (2000).
绘制多波斯富街和Walden(2000年)的时间序列分析的小波方法类似于图108 DWT小波或者缩放过滤器。
用法----------Usage----------
figure108.wt.filter(filter.objects, level = 1, l = NULL, wavelet = TRUE)
参数----------Arguments----------
参数:filter.objects
List containing 'wt.filter' objects, character strings specifying a wavelet filter, or numeric vectors of wavelet coefficients. The list can contain a combination of 'wt.filter' objects, character strings, and numeric vectors. If only one filter is to be plotted, a single 'wt.filter' object, character string, or numeric vector may be supplied. See 'help(wt.filter)' for acceptable filter names.
列表包含“wt.filter的对象,字符串指定的小波滤波器,或数字向量小波系数。该列表可以包含wt.filter的对象,字符串和数字向量的组合。如果只有一个过滤器以被绘制,单个wt.filter对象,字符串或数值向量可以被提供。请参阅“帮助”(wt.filter)为可接受的过滤器名称。
参数:level
If filter.object is only a single 'wt.filter' object, character string, or numeric vector, then the level of the filter can be specified in level. Defaulted to 1.
filter.object如果只有一个wt.filter的对象,字符串或数字矢量,然后水平的过滤器可以指定level。默认为1。
参数:l
Single integer representing the right hand limit of the horizontal axis. If unspecified, it will default to the length of the filter of greatest length given in filter.object. Cannot be less than the length of the filter of greatest length.
单的整数,表示的水平轴的右手限制。如果未指定,将默认的最大长度在filter.object过滤器的长度。不能小于滤波器的长度的最大长度
参数:wavelet
A logical flag indicating whether to plot the wavelet (high pass) or scaling (low pass) filter.
一个逻辑标志,指示是否绘制的小波(高通)或缩放(低通)滤波器。
Details
详细信息----------Details----------
The plotting space available for each filter is dictated by the value of greatest magnitude of all the filters plotted. The vertical plotting space for each level will then be 2 times the absolute value of this magnitude.
取决于值的最大的大小,所有的过滤器绘制的绘制每个过滤器的可用空间。然后,为每个级别的垂直绘图空间将是这样大的绝对值的2倍。
The filters are successively plotted in the order given in filter.object, where the first filter in filter.object is drawn at the top of the plot region, and the successive filters are plotted below.
该过滤器被连续地绘制在给定的顺序在filter.object,其中第一滤波器在filter.object被绘制的地积区域的顶部,和下面的曲线所示的连续的过滤器。
(作者)----------Author(s)----------
Kelvin Ma, kkym@u.washington.edu
参考文献----------References----------
Series Analysis, Cambridge University Press.
参见----------See Also----------
wt.filter
wt.filter
实例----------Examples----------
# Plotting the LA8 Wavelet Filter[绘制LA8小波滤波器]
filter <- wt.filter()
figure108.wt.filter(filter)
# Alternatively[另外]
figure108.wt.filter("la8")
# Plotting the Haar, D4, D6 Wavelet Filters[绘制的Haar,D4,D6小波滤波器]
figure108.wt.filter(list("haar", "d4", "d6"))
# Plotting the Haar, D4, D6 Scaling Filters[绘制的Haar,D4,D6缩放过滤器]
figure108.wt.filter(list("haar", "d4", "d6"), wavelet = FALSE)
# Alternatively[另外]
haar <- wt.filter("haar")
d6 <- wt.filter("d6")
figure108.wt.filter(list(haar, "d4", d6), wavelet = FALSE)
# Adding an "made up" filter (represented by c(1,-1,1,-1)[添加一个“制成”过滤器(表示为c(1,-1,1,-1)]
figure108.wt.filter(list(haar, "d4", d6, c(1,-1,1,-1)), wavelet = FALSE)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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