sample.space.2 {CLAST} R Documentation

## Sample space enumeration (K=2)

### Description

Creates all possible samples from a multi-stage group sequential trial with K=2. If K>2, use the function sample.space instead.

### Usage

sample.space.2(n, a, b)


### Arguments

 n Design vector of planned sample sizes a Design vector of lower futility boundaries b Design vector of upper superiority boundaries

### Value

list with components $Y,$M, $S,$decision and \$design

Chris J. Lloyd

### References

Lloyd, C.J. (2020) Exact confidence limits after a group sequential single arm binary trial. Statistics in Medicine, Volume 38, 2389-2399. doi: 10.1002/sim.8909

### Examples

n=c(5,6)
a=c(2,6)
b=c(5,7)
# There are 18 possible outcomes from this design which are
# listed in a natural systematic order by function sample.space.
all.samples=sample.space.2(n,a,b)
attributes(all.samples)
# Y contains the 18 possible sequential binary outcomes;
# M contains how many stages before the decision;
# S contains the total number of success that produces the decision;
# decision the final binary test result of H0 or H1.



[Package CLAST version 1.0.1 Index]