plotMediation: Plot (robust) mediation analysis results

Description Usage Arguments Value Author(s) See Also

Description

Produce dot plots of selected coefficients from regression models computed in (robust) mediation analysis, or density plots of the indirect effect.

Usage

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plotMediation(object, ...)

## S3 method for class 'bootTestMediation'
plotMediation(object, method = c("dot",
  "density"), parm = c("c", "ab"), ...)

## S3 method for class 'sobelTestMediation'
plotMediation(object, data, method = c("dot",
  "density"), parm = c("c", "ab"), level = 0.95, ...)

## S3 method for class 'list'
plotMediation(object, data, method = c("dot", "density"),
  parm = c("c", "ab"), level = 0.95, ...)

## Default S3 method:
plotMediation(object, mapping = attr(object, "mapping"),
  facets = attr(object, "facets"), ...)

## S3 method for class 'testMediation'
autoplot(object, ...)

## S3 method for class 'testMediation'
plot(x, ...)

Arguments

object, x

an object inheriting from class "testMediation" containing results from (robust) mediation analysis. For plotMediation, a list of such objects may be supplied as well.

method

a character string specifying which plot to produce. Possible values are "dot" for a dot plot of selected coefficients, or "density" for a density plot of the indirect effect.

parm

a character string specifying the coefficients to be included in a dot plot. The default is to include the direct and the indirect effect.

data

an optional numeric vector containing the x-values at which to evaluate the assumed normal density from Sobel's test (only used in case of a density plot). The default is to take 100 equally spaced points between the estimated indirect effect +/- three times the standard error according to Sobel's formula.

level

numeric; the confidence level of the confidence intervals from Sobel's test to be included in a dot plot. The default is to include 95% confidence intervals.

mapping

an aesthetic mapping to override the default behavior (see aes or aes_string).

facets

a faceting formula to override the default behavior (only used in case of a dot plot). If supplied, facet_wrap or facet_grid is called depending on whether the formula is one-sided or two-sided.

...

additional arguments to be passed to and from methods.

Value

An object of class "ggplot" (see ggplot).

Author(s)

Andreas Alfons

See Also

testMediation, fortify



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