coef.explore: Compute Regression Parameters for 'explore' Objects

In BGGM: Bayesian Gaussian Graphical Models

Compute Regression Parameters for explore Objects

Description

There is a direct correspondence between the inverse covariance matrix and multiple regression \insertCitekwan2014regression,Stephens1998BGGM. This readily allows for converting the GGM parameters to regression coefficients. All data types are supported.

Usage

## S3 method for class 'explore'
coef(object, iter = NULL, progress = TRUE, ...)

Arguments

object	An Object of class explore.
iter	Number of iterations (posterior samples; defaults to the number in the object).
progress	Logical. Should a progress bar be included (defaults to TRUE) ?
...	Currently ignored.

Value

An object of class coef, containting two lists.

• betas A list of length p, each containing a p - 1 by iter matrix of posterior samples

• object An object of class explore (the fitted model).

References

\insertAllCited

Examples

# note: iter = 250 for demonstrative purposes

# data
Y <- ptsd[,1:4]

##########################
### example 1: ordinal ###
##########################

# fit model (note + 1, due to zeros)
fit <- explore(Y + 1,
               type = "ordinal",
               iter = 250,
               progress = FALSE)

# summarize the partial correlations
reg <- coef(fit, progress = FALSE)

# summary
summ <- summary(reg)

summ

BGGM documentation built on Sept. 11, 2024, 5:19 p.m.