sampleSizetwo: samplesizetwo calculates the sample size for a two treatment...

Description Usage Arguments

View source: R/sampSizeFunctions.R

Description

This function is used to calculate the sample size for a two treatment case

Usage

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sampleSizetwo(z.alpha, z.beta, rho, beta1, beta0, sigma, tau, mu.delta,
  gam)

Arguments

z.alpha

z alpha is the set Type I error level

z.beta

Z beta is the set power level

rho

Is the allocation ratio of available long-term endpoints to short-term endpoints

beta1

Beta1 is the beta from the relationship between the X and Y variable

beta0

Beta 0 is the beta from the relationship between the X and Y variable

sigma

Sigma is either one sigma or two sigmas if two treatments

tau

Tau is used in the calculation of r

mu.delta

Mu.delta is the set level between the treatment and control, or the two treatments

gam

Gam is the ratio between the two treatment groups


Gtmille2/twoStageSeamless documentation built on Oct. 30, 2019, 6:36 p.m.