Plot operating characteristics across simulation scenarios

Draws operating-characteristic curves across a series of true treatment-effect scenarios. The first panel shows final success and stopping probabilities. The second panel shows mean enrolled sample size.

Usage

plot_sim_ocs(x, effect, xlab = "True treatment effect")

Arguments

x

A data frame returned by summarise_sims(), with one row per simulation scenario.

effect

Numeric treatment-effect values corresponding to the rows of x, or a single character string naming a numeric column in x.

xlab

Character label for the treatment-effect axis.

Value

x, invisibly.

Examples

operating_characteristics <- data.frame(
  scenario = c("null", "small", "target"),
  effect = c(1, 0.85, 0.7),
  power = c(0.025, 0.55, 0.9),
  stop_success = c(0.01, 0.35, 0.75),
  stop_futility = c(0.7, 0.25, 0.05),
  stop_max_N = c(0.29, 0.4, 0.2),
  mean_N = c(180, 250, 210),
  sd_N = c(45, 60, 55),
  stop_and_fail = c(0.001, 0.01, 0.02)
)
plot_sim_ocs(
  operating_characteristics,
  effect = "effect",
  xlab = "True hazard ratio"
)