dagR: dag.adjust – R documentation

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dag.adjust

Adjust an existing DAG for covariables.

Description

The function looks for associations introduced by adjusting for the covariables specified, then looks for biasing paths, and finally evaluates these paths.

Usage

dag.adjust(dag, A = c())

Arguments

`dag`	The DAG to be adjusted (or evaluated).
`A`	Vector indicating the adjustment set. The numbering is according to the nodes vector of the DAG, which is shown e.g. in the legend of a DAG drawn by `dag.draw`. This numbering is different (+1) from the one used in `dag.init`, because the nodes vector also contains the exposure at position 1 (in contrast to the covariables vector used in `dag.init`)!

Details

If the adjustment set is empty, the function only looks for biasing paths and evalutes these.

Value

A DAG with the adjustment set A, and possibly with additional associations introduced by adjustment, biasing paths found, and the status of these.
If adjustment set is not empty, searchType and searchRes are set to NULL.

Note

CAVE: Do not apply this to an already adjusted DAG, since this might not be handled appropriately (see documentation of dag.adjustment called by dag.adjust).

Author(s)

Lutz P Breitling <l.breitling@posteo.de>

Examples

demo.dag1();
dag.adjust(demo.dag1());
dag.adjust(demo.dag1(), A=3);

dagR

R Functions for Directed Acyclic Graphs

v1.2.0

GPL-2

Authors

Lutz P Breitling

Initial release

2021-04-17