mgm: showInteraction – R documentation

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mgm

showInteraction

Retrieving details of interactions

Description

Retrieves details of a specified interaction from mgm model objects.

Usage

showInteraction(object, int)

Arguments

`object`	The output of one of the estimation functions `mgm()`, `tvmgm()`, `mvar()`, `tvmvar()`.
`int`	An integer vector specifying the interaction. For mVAR models, this vector has length 2. For MGMs the vector can be larger to request details of interaction of order > 2.

Details

Currently the function only returns details of pairwise interactions from output objects of mgm().

Value

`variables`	Integer vector returning the variables specified via the argument `int`
`type`	Character vector returning the type of the specified variables variables
`level`	Integer vector returning the number of levels of the specified variables variables
`parameters`	A list of length equal to the order k of the specified interaction. The entries contain the set of parameters obtained from the nodewise regressions on the k variables. Depending on the type of the variables in the interaction, these sets can obtain one or several parameters. For details see `?mgm` or Haslbeck & Waldorp (2017).

Author(s)

Jonas Haslbeck <jonashaslbeck@gmail.com>

References

Haslbeck, J. M. B., & Waldorp, L. J. (2020). mgm: Estimating time-varying Mixed Graphical Models in high-dimensional Data. Journal of Statistical Software, 93(8), pp. 1-46. DOI: 10.18637/jss.v093.i08

Examples

## Not run: 


## We fit a pairwise and 3-order MGM to the mixed Autism dataset (?autism_data)

# 1) Fit Pairwise MGM

# Call mgm()
fit_d2 <- mgm(data = autism_data$data,
              type = autism_data$type,
              level = autism_data$lev,
              k = 2) # ad most pairwise interacitons

# Weighted adjacency matrix
fit_d2$pairwise$wadj # for instance, we see there is an interaction 1-2

# 2) Look at details of interaction 1-2
showInteraction(object = fit_d2, 
                int = c(1, 2))

# For more examples see https://github.com/jmbh/mgmDocumentation


## End(Not run)

mgm

Estimating Time-Varying k-Order Mixed Graphical Models

v1.2-11

GPL (>= 2)

Authors

Jonas Haslbeck

Initial release

2021-02-02