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Plot robust confidence intervals

Source: R/plot.R
plot.hcinfer.Rd

Plots normal Wald confidence intervals for an hcinfer() result. Each interval is color-coded by the test decision at the stored significance level: coefficients for which the null hypothesis is rejected are shown in red, and those for which it is not rejected are shown in blue. Formatted p-values are printed to the right of each interval for quick reading.

Usage

# S3 method for class 'hcinfer'
plot(x, parm, ...)

Arguments

x

An object returned by hcinfer().

parm

Optional coefficient names or integer positions. When supplied, only the selected coefficients are plotted. The selection follows the same rules as confint.hcinfer() and tests.hcinfer().

...

Unused. Passing named arguments raises an error.

Value

A ggplot2::ggplot() object.

See also

hcinfer(), confint.hcinfer(), tests.hcinfer()

Examples

schools <- PublicSchools |>
  dplyr::mutate(
    income_scaled = income / 10000,
    income_scaled_sq = income_scaled^2
  )
fit <- lm(expenditure ~ income_scaled + income_scaled_sq, data = schools)
result <- hcinfer(fit)
plot(result)

plot(result, parm = "income_scaled_sq")