getmatrix: Extract an estimated matrix

In psychonetrics: Structural Equation Modeling and Confirmatory Network Analysis

Description

This function will extract an estimated matrix, and will either return a single matrix for single group models or a list of such matrices for multiple group models.

Usage

getmatrix(x, matrix, group)

Arguments

x	A psychonetrics model.
matrix	String indicating the matrix to be extracted.
group	Integer indicating the group for the matrix to be extracted.

Value

A matrix of parameter estimates, of a list of such matrices for multiple group models.

Author(s)

Sacha Epskamp

Examples

# Load bfi data from psych package:
library("psychTools")
data(bfi)

# Also load dplyr for the pipe operator:
library("dplyr")

# Let's take the agreeableness items, and gender:
ConsData <- bfi %>% 
  select(A1:A5, gender) %>% 
  na.omit # Let's remove missingness (otherwise use Estimator = "FIML)

# Define variables:
vars <- names(ConsData)[1:5]

# Let's fit a full GGM:
mod <- ggm(ConsData, vars = vars, omega = "full")

# Run model:
mod <- mod %>% runmodel

# Obtain network:
mod %>% getmatrix("omega")

psychonetrics documentation built on Oct. 26, 2021, 1:06 a.m.