ggpmisc (version 0.6.0)

keep_tidy: Tidy, glance or augment an object keeping a trace of its origin

Description

Methods implemented in package 'broom' to tidy, glance and augment the output from model fits return a consistently organized tibble with generic column names. Although this simplifies later steps in the data analysis and reporting, it drops key information needed for interpretation. keep_tidy() makes it possible to retain fields from the model fit object passed as argument to parameter x in the attribute "fm". The class of x is always stored, and by default also fields "call", "terms", "formula", "fixed" and "random" if available.

Usage

keep_tidy(x, ..., to.keep = c("call", "terms", "formula", "fixed", "random"))
keep_glance(x, ..., to.keep = c("call", "terms", "formula", "fixed", "random"))
keep_augment(
  x,
  ...,
  to.keep = c("call", "terms", "formula", "fixed", "random")
)

Arguments

x

An object for which tidy(), glance and/or augment method is available.

...

Other named arguments passed along to tidy(), glance or augment.

to.keep

character vector of field names in x to copy to attribute "fm" of the tibble returned by tidy(), glance or augment.

Details

Functions keep_tidy(), keep_glance or keep_augment are simple wrappers of the generic methods which make it possible to add to the returned values an attribute named "fm" preserving user selected fields and class of the model fit object. Fields names in to.keep missing in x are silently ignored.

Examples

# these examples can only be run if package 'broom' is available

if (requireNamespace("broom", quietly = TRUE)) {

  library(broom)

  mod <- lm(mpg ~ wt + qsec, data = mtcars)

  attr(keep_tidy(mod), "fm")[["class"]]
  attr(keep_glance(mod), "fm")[["class"]]
  attr(keep_augment(mod), "fm")[["class"]]

  attr(keep_tidy(summary(mod)), "fm")[["class"]]

  library(MASS)
  rmod <- rlm(mpg ~ wt + qsec, data = mtcars)
  attr(keep_tidy(rmod), "fm")[["class"]]

}