[英]factanal in Base R and handling of NAs
我有一个名为D
的data.frame
显示在这里。 我想在D
的前8
列中使用基础factanal
中的事实 function 。
但是,我想知道为什么会出现以下错误: 'x' 必须仅在我设置了要删除的NA
'x' must contain finite values only
?
D <- read.csv("https://raw.githubusercontent.com/rnorouzian/i/master/SLI.csv", h = T)
pre <- D[1:8] # separate first 8 columns
factanal(pre, factors = 1, scores = "reg", na.action = na.omit)
# Error in cov.wt(z) : 'x' must contain finite values only
文档指出na.action
参数仅在公式作为x
传递时适用。 如果要传递缺少值的data.frame
,则需要对其进行子集化。
pre <- D[complete.cases(D[1:8]),1:8]
factanal(pre, factors = 1, scores = "reg" )
Call:
factanal(x = pre, factors = 1, scores = "reg")
Uniquenesses:
Q1_a Q2_a Q3_a Q4_a Q5_a Q6_a Q7_a Q8_a
0.645 0.547 0.801 0.556 0.254 0.280 0.996 0.915
Loadings:
Factor1
Q1_a 0.596
Q2_a 0.673
Q3_a 0.446
Q4_a 0.666
Q5_a 0.863
Q6_a 0.848
Q7_a
Q8_a 0.292
Factor1
SS loadings 3.006
Proportion Var 0.376
Test of the hypothesis that 1 factor is sufficient.
The chi square statistic is 17.83 on 20 degrees of freedom.
The p-value is 0.599
或相同的结果:
factanal(as.formula(paste0("~", paste0(names(D[1:8]), collapse = " + "))), data = D, na.action = "na.omit", factors = 1, scores = "reg" )
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