is_confounder: Assess if a variable confounds a relationship

In ggdag: Analyze and Create Elegant Directed Acyclic Graphs

Assess if a variable confounds a relationship

Description

Assess if a variable confounds a relationship

Usage

is_confounder(.tdy_dag, z, x, y, direct = FALSE)

Arguments

.tdy_dag	input graph, an object of class tidy_dagitty or dagitty
z	a character vector, the potential confounder
x, y	a character vector, the variables z may confound.
direct	logical. Only consider direct confounding? Default is FALSE

Value

Logical. Is the variable a confounder?

Examples

dag <- dagify(y ~ z, x ~ z)

is_confounder(dag, "z", "x", "y")
is_confounder(dag, "x", "z", "y")

ggdag documentation built on Sept. 11, 2024, 6:12 p.m.