utils(simPopulation)
utils()所属R语言包:simPopulation
Weighted mean, variance, covariance matrix and correlation matrix
加权平均数,方差,协方差矩阵和相关矩阵
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Compute mean, variance, covariance matrix and correlation matrix, taking into account sample weights.
计算均值,方差,协方差矩阵和相关矩阵,考虑样本权重。
用法----------Usage----------
meanWt(x, weights, na.rm = TRUE)
varWt(x, weights, na.rm = TRUE)
covWt(x, ...)
## Default S3 method:[默认方法]
covWt(x, y, weights, ...)
## S3 method for class 'matrix'
covWt(x, weights, ...)
## S3 method for class 'data.frame'
covWt(x, weights, ...)
corWt(x, ...)
## Default S3 method:[默认方法]
corWt(x, y, weights, ...)
## S3 method for class 'matrix'
corWt(x, weights, ...)
## S3 method for class 'data.frame'
corWt(x, weights, ...)
参数----------Arguments----------
参数:x
for meanWt and varWt, a numeric vector. For covWt and corWt, a numeric vector, matrix or data.frame.
meanWt和varWt,一个数字矢量。对于covWt和corWt,一个数值向量,矩阵或data.frame。
参数:y
a numeric vector. If missing, this defaults to x.
一个数值向量。如果缺少,这默认为x的。
参数:weights
an optional numeric vector containing sample weights.
一个可选的数字向量的样本权重。
参数:na.rm
a logical indicating whether any NA or NaN values should be removed from x before computation. Note that the default is TRUE.
一个逻辑说明是否有任何NA或应该从NaN值x之前计算。请注意,默认的是TRUE。
参数:...
for the generic functions covWt and corWt, additional arguments to be passed to methods. Additional arguments not included in the definition of the methods are ignored.
的通用功能covWt和corWt,额外的参数被传递到方法。的方法的定义中不包括的额外的参数将被忽略。
Details
详细信息----------Details----------
meanWt is a simple wrapper that calls mean(x, na.rm=na.rm) if weights is missing and weighted.mean(x, w=weights, na.rm=na.rm) otherwise.
meanWt是一个简单的包装,要求mean(x, na.rm=na.rm)如果weights失踪,weighted.mean(x, w=weights, na.rm=na.rm)否则。
varWt calls var(x, na.rm=na.rm) if weights is missing.
varWt调用var(x, na.rm=na.rm)如果weights丢失。
covWt and corWt always remove missing values pairwise and call cov and cor, respectively, if weights is missing.
covWt和corWt总是删除缺失值的配对,并呼吁cov和cor,分别weights如果缺少。
值----------Value----------
For meanWt, the (weighted) mean.
对于meanWt,(加权)的意思。
For varWt, the (weighted) variance.
对于varWt,(加权)变异。
For covWt, the (weighted) covariance matrix or, for the default method, the (weighted) covariance.
对于covWt,(加权)的协方差矩阵,为默认的方法,(加权)协方差。
For corWt, the (weighted) correlation matrix or, for the default method, the (weighted) correlation coefficient.
对于corWt,相关矩阵(加权),或为默认的方法,相关系数(加权)。
(作者)----------Author(s)----------
Stefan Kraft and Andreas Alfons
参见----------See Also----------
mean, weighted.mean, var, cov, cor
mean,weighted.mean,var,cov,cor
实例----------Examples----------
data(eusilcS)
meanWt(eusilcS$netIncome, weights=eusilcS$rb050)
sqrt(varWt(eusilcS$netIncome, weights=eusilcS$rb050))
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。
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