require(dplyr, quietly = TRUE)
require(sjlabelled, quietly = TRUE)
data(birthwt, package = "MASS")
birthwt <- birthwt |>
mutate(
smoke = factor(smoke, labels = c("Non-smoker", "Smoker")),
race = factor(race, labels = c("White", "African American", "Other"))
) |>
var_labels(
bwt = "Birth weight (g)",
smoke = "Smoking status",
race = "Race"
)
model_norm <- lm(bwt ~ smoke + race, data = birthwt)
get_r2(model_norm)
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