= R mediation =

'''mediation''' is a bootstrapping software for [[Statistics/MediationAnalysis|mediation analysis]].

<<TableOfContents>>

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== Installation ==

{{{
install.packages('mediation')
}}}

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== Usage ==

{{{
library(mediation)

XonM <- lm(M ~ X, data = data)
XMonY <- lm(Y ~ X + M, data = data)

mediate(XonM, XMonY, treat='X', mediator='M', boot=TRUE, sims=500)
}}}

This displays:
 * the '''average causal mediation effects''' ('''ACME'''), the key measure of this bootstrapping method
   * if significantly different than 0, then there is a significant '''mediation effect'''
 * the '''average direct effects''' ('''ADE''')
 * the total effect
   * ''total effect = ACME + ADE''
 * the proportion of the total effect that was mediated
   * ''prop = ACME / total effect''



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