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gsDesign (version 2.4-01)

Group Sequential Design

Description

gsDesign is a package that derives group sequential designs and describes their properties.

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Version

Install

install.packages('gsDesign')

Monthly Downloads

3,431

Version

2.4-01

License

GPL (>= 2)

Maintainer

Keaven Anderson

Last Published

February 20th, 2011

Functions in gsDesign (2.4-01)

gsProbability

2.2: Boundary Crossing Probabilities

gsDesign

2.1: Design Derivation

gsDensity

2.6: Group sequential design interim density function

nSurvival

3.4: Time-to-event sample size calculation (Lachin-Foulkes)

sfPoints

4.5: Pointwise Spending Function

plot.gsDesign

2.3: Plots for group sequential designs

normalGrid

3.1: Normal Density Grid

gsDesign package overview

1.0 Group Sequential Design

sfPower

4.2: Kim-DeMets (power) Spending Function

sfLinear

4.6: Piecewise Linear Spending Function

Binomial

3.2: Testing, Confidence Intervals and Sample Size for Comparing Two Binomial Rates

sfLDOF

4.4: Lan-DeMets Spending function overview

checkScalar

6.0 Utility functions to verify variable properties

sfExponential

4.3: Exponential Spending Function

sfHSD

4.1: Hwang-Shih-DeCani Spending Function

gsBinomialExact

3.4: One-Sample Exact Binomial Boundary Crossing Probabilities

Wang-Tsiatis Bounds

5.0: Wang-Tsiatis Bounds

gsCP

2.4: Conditional and Predictive Power, Overall and Conditional Probability of Success

gsBound

2.6: Boundary derivation - low level

gsBoundSummary

2.8: Bound Summary and Z-transformations

Spending functions

4.0: Spending function overview

gsBoundCP

2.5: Conditional Power at Interim Boundaries

sfLogistic

4.7: Two-parameter Spending Function Families

sfTDist

4.8: t-distribution Spending Function