powerMediation0.3.4 package

Power/Sample Size Calculation for Mediation Analysis

ssMediation.VSMc

Sample size for testing mediation effect in linear regression based on...

testMediation.Sobel

P-value and confidence interval for testing mediation effect (Sobel's ...

minEffect.SLR

Minimum detectable slope

minEffect.VSMc.cox

Minimum detectable slope for mediator in cox regression based on Vitti...

minEffect.VSMc.logistic

Minimum detectable slope for mediator in logistic regression based on ...

minEffect.VSMc.poisson

Minimum detectable slope for mediator in poisson regression based on V...

minEffect.VSMc

Minimum detectable slope for mediator in linear regression based on Vi...

power.SLR

Power for testing slope for simple linear regression

power.SLR.rho

Power for testing slope for simple linear regression

powerInteract2by2

Power Calculation for Interaction Effect in 2x2 Two-Way ANOVA Given Ef...

powerLogisticBin

Calculating power for simple logistic regression with binary predictor

powerLogisticCon

Calculating power for simple logistic regression with continuous predi...

powerLong.multiTime

Power calculation for testing if mean changes for 2 groups are the sam...

powerLong

Power calculation for longitudinal study with 2 time point

powerLongFull

Power calculation for longitudinal study with 2 time point

powerMediation.Sobel

Power for testing mediation effect (Sobel's test)

powerMediation.VSMc.cox

Power for testing mediation effect in cox regression based on Vittingh...

powerMediation.VSMc.logistic

Power for testing mediation effect in logistic regression based on Vit...

powerMediation.VSMc.poisson

Power for testing mediation effect in poisson regression based on Vitt...

powerMediation.VSMc

Power for testing mediation effect in linear regression based on Vitti...

powerPoisson

Power calculation for simple Poisson regression

sizePoisson

Sample size calculation for simple Poisson regression

ss.SLR

Sample size for testing slope for simple linear regression

ss.SLR.rho

Sample size for testing slope for simple linear regression based on R2

SSizeLogisticBin

Calculating sample size for simple logistic regression with binary pre...

SSizeLogisticCon

Calculating sample size for simple logistic regression with continuous...

ssLong.multiTime

Sample size calculation for testing if mean changes for 2 groups are t...

ssLong

Sample size calculation for longitudinal study with 2 time point

ssLongFull

Sample size calculation for longitudinal study with 2 time point

ssMediation.Sobel

Sample size for testing mediation effectd (Sobel's test)

ssMediation.VSMc.cox

Sample size for testing mediation effect in cox regression based on Vi...

ssMediation.VSMc.logistic

Sample size for testing mediation effect in logistic regression based ...

ssMediation.VSMc.poisson

Sample size for testing mediation effect in poisson regression based o...

Functions to calculate power and sample size for testing (1) mediation effects; (2) the slope in a simple linear regression; (3) odds ratio in a simple logistic regression; (4) mean change for longitudinal study with 2 time points; (5) interaction effect in 2-way ANOVA; and (6) the slope in a simple Poisson regression.

  • Maintainer: Weiliang Qiu
  • License: GPL (>= 2)
  • Last published: 2021-03-23