我想在xtable
输出上使用candisc::cancor
函数。但是无法弄清楚。
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"
最佳答案
如果您查看methods(xtable)
,则没有用于cancor
对象的方法,但是有希望使用的xtable.data.frame
,因为cancor
的输出看起来像data.frames
。
但是,cancor
不返回这些值-请查看str(cc)
。它们是用print
方法计算的。查看candisc:::print.cancor
。
因此,创建一个快速提取函数以将cancor
输出生成为data.frames
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)))
}
运行助手功能
(out <- outfun(cc))
# or run it like
out <- outfun(cancor(X, Y, set.names=c("PA", "Ability")))
然后可以使用
xtable.data.frame
生成xtable
输出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]])
您可以调整助手功能以提取 header ,然后可以将其作为参数传递给
xtable.data.frame
。快速入门可能会帮助您入门
关于r - 在candisc::cancor输出上使用xtable函数,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/25730319/