squaredgain.wt.filter(wavelets)
squaredgain.wt.filter()所属R语言包:wavelets
Plot Squared Gain Function for Wavelet Filter
图平方小波滤波器的增益功能
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Plots squared gain function for a wavelet filter.
图平方增益函数的小波滤波器。
用法----------Usage----------
squaredgain.wt.filter(filter, level = 1, N = NULL, draw.bands = TRUE,
wavelet = TRUE)
参数----------Arguments----------
参数:filter
Either a 'wt.filter' object, a character string specifying a wavelet filter, or a numeric vector of wavelet coefficients. See 'help(wt.filter)' for acceptable filter names.
要么wt.filter对象,一个字符串指定一个小波滤波器,或一个数值向量的小波系数。请参阅“帮助”(wt.filter)为可接受的过滤器名称。
参数:level
Level of wavelet filter. Applicable only if a character string is supplied in filter
小波滤波器的水平。只适用于如果一个字符串提供filter
参数:N
Length of filter vector after padding the wavelet filter with zeroes. The zeroes are inserted after the filter values.
用零填充后的小波滤波器,滤波器向量的长度。零插入后的过滤器值。
参数:draw.bands
Draws dashed lines marking the lower and upper ends of the nominal pass-band for the wavelet filter.
绘制的虚线标记的下端和上端的小波滤波器的标称的通带。
参数:wavelet
A logical flag indicating whether to plot the squared gain function for the wavelet (high pass) or scaling (low pass) filter.
一个逻辑标志,指示是否绘制的平方增益函数的小波(高通)或缩放(低通)滤波器。
Details
详细信息----------Details----------
If N is not specified, and the filter supplied is of length less than 1024, then the filter vector will be padded to a length of 1024. Otherwise, if the filter supplied is of length greater than 1024, then the filter vector will be padded to the first 'power of 2' that is greater than the length of the filter supplied.
N如果不指定,并提供过滤器的长度小于1024,那么过滤器的矢量将被填充到长度为1024。否则,如果所提供的过滤器的长度是大于1024,那么过滤器向量将被填充的2,是提供的过滤器的长度大于第一的功率。
(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 squared gain function of LA8 Wavelet Filter Coefficients.[绘制LA8小波滤波器系数的平方增益功能。]
filter <- wt.filter("la8")
squaredgain.wt.filter(filter)
# Plotting the squared gain function of LA8 Scaling Filter Coefficients.[绘制LA8尺度滤波器系数的平方增益功能。]
squaredgain.wt.filter(filter, wavelet = FALSE)
# Plotting the squared gain function of Haar Wavelet Filter Coefficients[绘制的Haar小波滤波器系数的平方增益功能]
# without supplying a filter object.[但没有提供一个过滤器对象。]
squaredgain.wt.filter("haar")
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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