FWaveD(waved)
FWaveD()所属R语言包:waved
FWaveD
FWaveD
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Computes the Forward WaveD Transform.
计算的正向挥手转换。
用法----------Usage----------
FWaveD(y, g = 1, L = 3, deg = 3, F = (log2(length(y)) - 1), thr = rep(0, log2(length(y))), SOFT = FALSE)
参数----------Arguments----------
参数:y
Sample of f*g + (Gaussian noise), a vector of dyadic length (i.e. 2^(J-1) where J is the largest resolution level). Here f is the target function, g is the convolution kernel.
样本f*g+(高斯噪声),矢量并矢长度(即2^(J-1)J是最大分辨率级别)。在这里,f为目标函数,g为卷积核。
参数:g
Sample of g or g + (Gaussian noise), same length as yobs. The default is the Dirac mass at 0.
样品g或g+(高斯噪声),相同长度的小混混。默认值是狄拉克质量为0。
参数:L
Lowest resolution level; the default is 3.
最低分辨率级别,默认为3次。
参数:deg
The degree of the Meyer wavelet, either 1, 2, or 3 (the default).
的程度,Meyer小波,1,2,或3(默认值)。
参数:F
Finest resolution level; the default is the data-driven choice j1 (see Value below).
最好的分辨率级别,默认为数据驱动的选择J1(见以下值)。
参数:thr
A vector of length F-L+1, giving thresholds at each resolution levels L,L+1,...,F; default is maxiset threshold.
,在每个分辨率级别的阈值的矢量长度F-L+1L,L+1,...,F;默认是maxiset的阈值。
参数:SOFT
if SOFT=TRUE, uses the soft thresholding policy as opposed to the hard (SOFT=FALSE, the default).
如果SOFT = TRUE,采用软阈值策略,而不是硬(软= FALSE,默认值)。
值----------Value----------
Returns a vector of wavelet coefficients of length n (the same length as y), the last n/2 entries are wavelet coefficients at resolution level J-1, where J= log_2(n); the n/4 entries before that are the wavelet coefficients at resolution level J-2, and so on until level L. In addition the 2^L entries are scaling coefficients at coarse level C=L.
返回的小波系数的矢量长度为n的(相同的长度为y),上一次的n/2条目是在分辨率等级J-1,其中J= log_2(n);n/4的小波系数在这之前的条目是在分辨率级别的小波系数J-2,并依此类推,直到电平L此外2^L条目是在粗级C=L的缩放系数。
参考文献----------References----------
Johnstone, I., Kerkyacharian, G., Picard, D. and Raimondo, M. (2004), 'Wavelet deconvolution in a periodic setting', Journal of the Royal Statistical Society, Series B 66(3),547–573. with discussion pp.627–652.
Raimondo, M. and Stewart, M. (2006), ‘The WaveD Transform in R’, preprint, School and Mathematics and Statistics,
参见----------See Also----------
WaveD
WaveD
实例----------Examples----------
library(waved)
data=waved.example(TRUE,FALSE)
lidar.w=FWaveD(data$lidar.blur,data$g)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
|