model_values: Construct a model and return the model values

In LSTbook: Data and Software for "Lessons in Statistical Thinking"

Construct a model and return the model values

Description

One-stop shopping to fit a model and return the model output on the training data.

Usage

model_values(data, tilde, family = c("linear", "prob", "counts"))

Arguments

data	A data frame containing the training data. When used with mutate(), data will hold the model specification, instead of tilde.
tilde	A model specification in the form of a tilde expression
family	The type of model architecture: "linear", "prob", or "counts"

Details

This is intended to be used ONLY WITHIN mutate()

Value

A vector (not a data frame) of the model evaluated on the training data. This is intended mainly for use within mutate(), so that a general model can be used in the place of simple reduction verbs like mean(), median()

Examples

mtcars |> mutate(mpg_mod = model_values(mpg ~ hp + wt)) |> select(hp, wt, mpg_mod) |> head()

LSTbook documentation built on April 3, 2025, 6:02 p.m.