# powcv: Power using coefficient of variation (CV) In BE: Bioequivalence Study Data Analysis

## Description

It calculates power for the bioequivalence test on ratio using coefficient of variation (CV).

## Usage

 `1` ```powcv(n, CV, DesignNo = 1, True.R = 1, Alpha = 0.1, ThetaL = 0.8, ThetaU = 1.25) ```

## Arguments

 `n` Sample size, n per group `CV` Coefficient of Variation (%) `DesignNo` Crossover design number. ``` Design Number (treatment x sequence x period) 1 2x2x2 : RT TR (no carry-over) 2 2x4x2 (Balaam Design) : TT RR RT TR (no carry-over) 3 2x2x3 (Two-sequence Dual Design): TRR RTT (no carry-over) 4 2x3x3 : TRR RTR RRT - carry-over effect 5 2x2x4c : TRRT RTTR + carry-over effect 6 2x2x4 : TRRT RTTR - carry-over effect 7 2x4x4 : TTRR RRTT TRRT RTTR 8 3x6x3c (William Design for 3 treatments) + carry-over effect : RBA ARB BAR ABR BRA RAB 9 3x6x3 (William Design for 3 treatments) - carry-over effect : RBA ARB BAR ABR BRA RAB 10 4x4x4c (William Design for 4 treatments) + carry-over effect : RCAB ARBC BACR CBRA 11 4x4x4 (William Design for 4 treatments) - carry-over effect : RCAB ARBC BACR CBRA ``` `True.R` True ratio of test/reference `Alpha` Alpha error level `ThetaL` Lower limit of equivalence criteria `ThetaU` Upper limit of equivalence criteria

## Details

It calculates power of sample size (n per group) with `CV`.

## Value

Returns power [0, 1)

## Author(s)

Kyun-Seop Bae k@acr.kr

## Examples

 `1` ```powcv(12, 25) ```

BE documentation built on Oct. 23, 2020, 8:33 p.m.