# powerBsb: Power for binary sequential boundary In binseqtest: Exact Binary Sequential Designs and Analysis

## Description

Calculate power from `boundEst` object for vector of alternatives

## Usage

 `1` ```powerBsb(object, theta = 0.6, alternative = NULL) ```

## Arguments

 `object` a 'boundEst' object `theta` vector of theta values, probability of success `alternative` character, either 'two.sided', 'less', or 'greater'

## Details

Power to reject. For alternative='greater' reject when pU<tsalpha['alphaUpper'], and for alternative='less' reject when pL<tsalpha['alphaLower']. For alternative='two.sided' if theta[i]>theta0 reject when pU<tsalpha['alphaUpper'], if theta[i]<theta0 reject when pL<tsalpha['alphaLower'], if theta[i]==theta0 and tsalpha['alphaUpper']<=tsalpha['alphaLower'] reject when pU<tsalpha['alphaUpper'], and if theta[i]==theta0 and tsalpha['alphaUpper']>tsalpha['alphaLower'] reject when pL<tsalpha['alphaLower'].

## Value

a vector with power associated with the parameter vector theta

## Examples

 ```1 2``` ```B<-designAb(Nk=c(20,40),a=10,theta0=.4) powerBsb(B,theta=c(.1,.4,.8),alternative="less") ```

binseqtest documentation built on May 2, 2019, 2:04 a.m.