我想在xtable
输出上使用candisc::cancor
函数。但是想不出来。在这方面的任何帮助将受到高度赞赏。感谢
library(xtable)
library(candisc)
data(Rohwer, package="heplots")
X <- as.matrix(Rohwer[,6:10]) # the PA tests
Y <- as.matrix(Rohwer[,3:5]) # the aptitude/ability variables
(cc <- cancor(X, Y, set.names=c("PA", "Ability")))
Canonical correlation analysis of:
5 PA variables: n, s, ns, na, ss
with 3 Ability variables: SAT, PPVT, Raven
CanR CanRSQ Eigen percent cum scree
1 0.6703 0.44934 0.81599 77.30 77.30 ******************************
2 0.3837 0.14719 0.17260 16.35 93.65 ******
3 0.2506 0.06282 0.06704 6.35 100.00 **
Test of H0: The canonical correlations in the
current row and all that follow are zero
CanR WilksL F df1 df2 p.value
1 0.67033 0.44011 3.8961 15 168.8 0.000006
2 0.38366 0.79923 1.8379 8 124.0 0.076076
3 0.25065 0.93718 1.4078 3 63.0 0.248814
xtable(cc)
Error in UseMethod("xtable") :
no applicable method for 'xtable' applied to an object of class "cancor"
答案 0 :(得分:5)
如果您查看methods(xtable)
,cancor
对象没有方法,但我们可以使用xtable.data.frame
,因为cancor
的输出看起来像{{ 1}}。
但是,data.frames
不会返回这些值 - 请查看cancor
。它们以str(cc)
方法计算。看看print
。
因此,创建一个快速提取功能,以candisc:::print.cancor
cancor
输出
data.frames
运行辅助函数
outfun <- function(X) {
CanR = X$cancor
CanRSQ = CanR^2
Eigen = CanRSQ/(1 - CanRSQ)
percent = 100 * Eigen/sum(Eigen)
cum = cumsum(percent)
list(tab1 = data.frame(CanR, CanRSQ, Eigen, percent, cum) ,
tab2 = as.data.frame(candisc:::Wilks.cancor(X)))
}
然后可以使用(out <- outfun(cc))
# or run it like
out <- outfun(cancor(X, Y, set.names=c("PA", "Ability")))
生成xtable.data.frame
输出
xtable
您可以调整辅助函数以提取标题,然后将其作为参数传递给xtable:::xtable.data.frame(out[[1]])
# % latex table generated in R 3.1.1 by xtable 1.7-3 package
# % Wed Sep 17 18:32:07 2014
# \begin{table}[ht]
# \centering
# \begin{tabular}{rrrrrr}
# \hline
# & CanR & CanRSQ & Eigen & percent & cum \\
# \hline
# 1 & 0.67 & 0.45 & 0.82 & 77.30 & 77.30 \\
# 2 & 0.38 & 0.15 & 0.17 & 16.35 & 93.65 \\
# 3 & 0.25 & 0.06 & 0.07 & 6.35 & 100.00 \\
# \hline
# \end{tabular}
# \end{table}
xtable:::xtable.data.frame(out[[2]])
。
可以帮助您入门的快速答案