扫帚::整理或浏览rms :: lrm现在会导致错误

Question

我以前能够使用broom :: tidy和broom ::浏览rms :: lrm对象。但是，尝试这样做会导致错误。

以前，bms :: tidy对rms：lrm对象提供以下内容（值已组成）：

term    estimate    std.error   statistic   p.value
y>=six      -2.1         0.76       -2.78      0.01
y>=eight   -4.98         1.16       -4.31         0
mpg         0.08         0.02        3.97         0

和broom :: glance将输出以下值：

obs max.deriv   model.lr    df  p.value concordance somers.d    gamma   tau.a   r.squared   brier   g   gr  gp

但现在我得到了错误。我尝试安装以前版本的扫帚和rms，但这并没有解决错误。我目前正在使用R 3.4.2

library(dplyr)
library(rms)
library(broom)
data("mtcars")

df <- mtcars %>% select(mpg, cyl)
df$CYL <- factor(df$cyl, levels = c(6,4,8), labels=c("six", "four", "eight")) #ordered factor for ordinal logistic

fit <- lrm(CYL~mpg, data=df)
tidy(fit)

扫帚::整洁错误

Error in as.data.frame.default(x) : 
  cannot coerce class "c("lrm", "rms", "glm")" to a data.frame
In addition: Warning message:
In tidy.default(fit) :
  No method for tidying an S3 object of class lrm , using as.data.frameNo method for tidying an S3 object of class rms , using as.data.frameNo method for tidying an S3 object of class glm , using as.data.frame

扫帚::扫视错误

Error in summary.rms(x) : 
  adjustment values not defined here or with datadist for mpg