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WebPower (version 0.5)

Basic and Advanced Statistical Power Analysis

Description

This is a collection of tools for conducting both basic and advanced statistical power analysis including correlation, proportion, t-test, one-way ANOVA, two-way ANOVA, linear regression, logistic regression, Poisson regression, mediation analysis, longitudinal data analysis, structural equation modeling and multilevel modeling. It also serves as the engine for conducting power analysis online at .

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Version

Install

install.packages('WebPower')

Monthly Downloads

1,723

Version

0.5

License

GPL (>= 3)

Maintainer

Zhiyong Zhang

Last Published

April 16th, 2018

Functions in WebPower (0.5)

WebPower-package

Basic and Advanced Statistical Power Analysis
wp.effect.CRT2arm

Effect size calculatator based on raw data for Cluster Randomized Trials with 2 Arms
summary.power

Summary Statistical Power Analysis Results
wp.anova

Statistical Power Analysis for One-way ANOVA
wp.anova.count

Statistical Power Analysis for One-way ANOVA with Count Data
wp.effect.CRT3arm

Effect size calculatator based on raw data for Cluster Randomized Trials with 3 Arms
wp.sem.chisq

Statistical Power Analysis for Structural Equation Modeling based on Chi-Squared Test
wp.mc.t

Power analysis for t-test based on Monte Carlo simulation
wp.logistic

Statistical Power Analysis for Logistic Regression
wp.mediation

Statistical Power Analysis for Simple Mediation
wp.mc.sem.basic

Statistical Power Analysis for Structural Equation Modeling / Mediation based on Monte Carlo Simulation
plot.lcs.power

Plot the power curve for Latent Change Score Models
wp.regression

Statistical Power Analysis for Linear Regression
wp.blcsm

Statistical Power Curve for Bivariate Latent Change Score Models based on Monte Carlo Simulation
wp.sem.rmsea

Statistical Power Analysis for Structural Equation Modeling based on RMSEA
wp.kanova

Power analysis for two-way, three-way and k-way ANOVA
wp.lcsm

Statistical Power Curve for Univariate Latent Change Score Models based on Monte Carlo Simulation
wp.correlation

Statistical Power Analysis for Correlation
wp.mrt2arm

Statistical Power Analysis for Multisite Randomized Trials with 2 Arms
wp.mmrm

Power analysis for longitudinal data analysis
wp.t

Statistical Power Analysis for t-Tests
wp.rmanova

Statistical Power Analysis for Repeated Measures ANOVA
wp.effect.MRT2arm

Effect size calculatator based on raw data for Multisite Randomized Trials with 2 Arms
wp.effect.MRT3arm

Effect size calculatator based on raw data for Multisite Randomized Trials with 3 Arms
wp.popPar

Extract Population Value Table
wp.mc.sem.boot

Statistical Power Analysis for Structural Equation Modeling / Mediation based on Monte Carlo Simulation: bootstrap method
wp.mc.sem.power.curve

Statistical Power Curve for Structural Equation Modeling / Mediation based on Monte Carlo Simulation
wp.mrt3arm

Statistical Power Analysis for Multisite Randomized Trials with 3 Arms
wp.poisson

Statistical Power Analysis for Poisson Regression
wp.prop

Statistical Power Analysis for Tests of Proportions
nuniroot

Sove An Single Equation
estCRT2arm

Estimate multilevel effect size from data
plot.webpower

To plot Statistical Power Curve
MRT2

Example Data For MRT With 2 Arms
wp.anova.binary

Statistical Power Analysis for One-way ANOVA with Binary Data
MRT3

Example Data For MRT With 3 Arms
wp.crt2arm

Statistical Power Analysis for Cluster Randomized Trials with 2 Arms
CRT3

Example Data For CRT With 3 Arms
wp.crt3arm

Statistical Power Analysis for Cluster Randomized Trials with 3 Arms
CRT2

Example Data For CRT With 2 Arms
print.webpower

To Print Statistical Power Analysis Results