SurvivalDesign

SurvivalDesign is a function that converts an arbitrary design to a survival design.

SurvivalDesign(design, event_rate)

# S4 method for TwoStageDesign
SurvivalDesign(design, event_rate)

# S4 method for TwoStageDesign
TwoStageDesign(n1, event_rate)

# S4 method for OneStageDesign
OneStageDesign(n, event_rate)

# S4 method for OneStageDesign
SurvivalDesign(design, event_rate)

# S4 method for GroupSequentialDesign
GroupSequentialDesign(n1, event_rate)

# S4 method for GroupSequentialDesign
SurvivalDesign(design, event_rate)

Arguments

design

design that should be converted to a survival design

event_rate

probability that a subject in either group will eventually have an event

n1

design object to convert (overloaded from TwoStageDesign)

n

design object to convert (overloaded from TwoStageDesign)

Examples

design <- get_initial_design(0.4,0.025,0.1)
SurvivalDesign(design,0.8)
#> TwoStageDesignSurvival<n_events1=72;0.0<=x1<=2.2;n_events2=34-182> 

design_os <- get_initial_design(0.4,0.025,0.1,type_design="one-stage")
design_gs <- get_initial_design(0.4,0.025,0.1,type_design="group-sequential")

OneStageDesign(design_os,0.7)
#> OneStageDesignSurvival<n_events=131;c=1.96> 

GroupSequentialDesign(design_gs,0.8)
#> GroupSequentialDesignSurvival<n_events1=72;0.0<=x1<=2.2;n_events2=72>