lines.rule.bin {stoppingrule}

Add Stopping Rule Curve to Current Plot (Binary Data)

Description

Add a binary stopping rule graphically as a curve on current plot

Usage

## S3 method for class 'rule.bin'
lines(x, smooth = TRUE, ...)

Arguments

x

A rule.bin object calculated by calc.rule.bin() function

smooth

Binary indicator of whether stopping rule boundary should be smoothed by linear interpolation between evaluation points

...

Other options to be passed to generic lines function

Value

No return value; function solely modifies current plot

Examples

# Binomial Pocock test in 50 patient cohort at 10% level, expected toxicity probability of 20%
poc_rule = calc.rule.bin(ns=1:50,p0=0.20,alpha=0.10,type="Pocock")

# Bayesian beta-binomial method of Geller et al. in 50 patient cohort at 10% level,
# expected toxicity probability of 20%
bb_rule = calc.rule.bin(ns=1:50,p0=0.20,alpha=0.10,type="BB",param=c(2,8))

# Plot stopping boundaries for stopping rules
plot(poc_rule,col="blue")
lines(bb_rule,col="red")