plot.sa_pval_gs: Plot the p-values, and the p-value calculation procedures...

In mjg211/singlearm: Design and analysis of single-arm clinical trials

Description

Plots the p-values, and the performance of the p-value calculation procedures, in a group sequential single-arm trial design for a single binary endpoint determined using pval_gs(). A range of plots are available, of which the p-values and the expected p-value curve will be printed by default.

Usage

## S3 method for class 'sa_pval_gs'
plot(x, ..., output = F)

Arguments

x	An object of class "sa_pval_gs", as returned by pval_gs().
...	Included for compatibility with the generic. Not currently used.
output	A logical variable indicating whether the outputs described below should be returned.

Value

If output = TRUE, a list containing the following elements is returned

• A list in the slot $plot_des containing the available plots.

• Each of the input variables as specified, subject to internal modification.

See Also

des_gs, opchar_gs, est_gs, pval_gs, and ci_gs, and their associated plot family of functions.

Examples

# Find the optimal group sequential design for the default parameters
des  <- des_gs()
# Determine the performance of the p-value calculation procedures for a range of
# possible response probabilities
pval <- pval_gs(des, pi = seq(from = 0, to = 1, by = 0.01))
# Plot the p-values and the calculation procedures performance
plot(pval)

mjg211/singlearm documentation built on May 8, 2021, 3:17 a.m.