Plot the thermal death-time (TDT) curve: survival-threshold time vs temperature

plot_tdt_curve() draws the duration at which survival crosses a target probability p against temperature – the classic thermal-death-time line, here read directly off the fitted 4PL via derive_lt(). With the default p = NULL, each line uses its fitted relative midpoint (low + up) / 2, not necessarily absolute 50% survival. Supply a numeric p for an absolute survival threshold. Time is shown on a log10 axis. For a grouped fit a line is drawn per group.

Usage

plot_tdt_curve(fit, p = NULL, temps = NULL, ...)

Arguments

fit

A profile_tls fit from fit_tls().

p

NULL (default) for the fitted relative midpoint, or an absolute target survival probability in (0, 1).

temps

Numeric vector of temperatures. Defaults to a sequence over the observed temperature range.

...

Reserved; must be empty.

Value

A ggplot object.

Examples

d <- simulate_tls(family = "binomial", CTmax = 36, z = 4, seed = 1)
fit <- fit_tls(d, y = survived, n = total, time = duration, temp = temp,
               family = "binomial", tref = 1)
plot_tdt_curve(fit)