Query Variable Status

Query the status of variables in a DAG (exposure, outcome, or latent).

Usage

query_status(.tdy_dag, .var = NULL)

Arguments

.tdy_dag

A tidy_dagitty or dagitty object

.var

Character vector of variables to query. If NULL, returns status for all nodes.

Value

A tibble with columns:

• name: The variable name

• status: The variable status (exposure, outcome, latent, or NA)

Examples

library(ggdag)
dag <- dagify(
  l ~ x + y,
  y ~ x,
  exposure = "x",
  outcome = "y",
  latent = "l"
)

query_status(dag)
#> # A tibble: 3 × 2
#>   name  status  
#>   <chr> <chr>   
#> 1 l     latent  
#> 2 x     exposure
#> 3 y     outcome 
query_status(dag, .var = "x")
#> # A tibble: 1 × 2
#>   name  status  
#>   <chr> <chr>   
#> 1 x     exposure