VarCorr(nlme)
VarCorr()所属R语言包:nlme
Extract variance and correlation components
提取方差和相关组件
译者:生物统计家园网 机器人LoveR
描述----------Description----------
This function calculates the estimated variances, standard deviations, and correlations between the random-effects terms in a linear mixed-effects model, of class lme, or a nonlinear mixed-effects model, of class nlme. The within-group error variance and standard deviation are also calculated.
此函数计算之间的随机效应线性混合效应模型估计方差,标准差和相关性,类lme类nlme,或非线性混合效应模型,。该组内误差方差和标准差计算。
用法----------Usage----------
VarCorr(x, sigma, rdig)
参数----------Arguments----------
参数:x
a fitted model object, usually an object inheriting from class lme.
拟合模型对象,通常是从对象继承类lme。
参数:sigma
an optional numeric value used as a multiplier for the standard deviations. Default is 1.
一个可选的数值作为乘数为标准偏差。默认1。
参数:rdig
an optional integer value specifying the number of digits used to represent correlation estimates. Default is 3.
一个可选的整型值,指定用来表示相关估计数字。默认3。
值----------Value----------
a matrix with the estimated variances, standard deviations, and correlations for the random effects. The first two columns, named Variance and StdDev, give, respectively, the variance and the standard deviations. If there are correlation components in the random effects model, the third column, named Corr, and the remaining unnamed columns give the estimated correlations among random effects within the same level of grouping. The within-group error variance and standard deviation are included as the last row in the matrix.
与随机效应的估计方差,标准差,相关矩阵。前两列,名为Variance和StdDev,分别为,方差和标准差。如果有随机效应模型,第三列名为Corr,剩下的未命名的列给在同一级别的分组估计随机效应之间的相关,相关组件。组内误差方差和标准差作为矩阵中的最后一排。
作者(S)----------Author(s)----------
Jose Pinheiro and Douglas Bates <a href="mailto:bates@stat.wisc.edu">bates@stat.wisc.edu</a>
参考文献----------References----------
in S and S-PLUS", Springer, esp. pp. 100, 461.
参见----------See Also----------
lme, nlme
lme,nlme
举例----------Examples----------
fm1 <- lme(distance ~ age, data = Orthodont, random = ~age)
VarCorr(fm1)
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。
|