Plot profile-likelihood curves — plot.profile.drmTMB • drmTMB

plot() for "profile.drmTMB" objects draws the likelihood-ratio curve returned by profile.drmTMB(). The dotted horizontal line is the likelihood-ratio cutoff for the stored confidence level, the solid vertical line marks the fitted estimate, and dashed vertical lines mark profile interval endpoints when they were extracted successfully. When the profile object contains coarse and dense passes, colour and line type separate the passes and the caption reports elapsed time for each.

Usage

# S3 method for class 'profile.drmTMB'
plot(x, interval = TRUE, ...)

Arguments

x: A "profile.drmTMB" object returned by profile.drmTMB().
interval: Logical; draw profile interval endpoint lines when finite conf.low and conf.high columns are available.
...: Reserved for future options.

Value

A ggplot object.

Examples

dat <- data.frame(y = c(0.2, 0.5, 1.1, 1.4), x = c(-1, 0, 1, 2))
fit <- drmTMB(bf(y ~ x, sigma ~ 1), data = dat)
prof <- profile(fit, parm = "sigma", profile_precision = "fast")
if (requireNamespace("ggplot2", quietly = TRUE)) {
  plot(prof)
}