Initializes a DAG motivated by the manual for the software DAG v0.11
(Kn\"uppel 2009). This DAG has been featured in Breitling (2010).
The DAG is the same as DAG #3, but #7 demonstrates the use of alternative node symbols.
Usage
demo.dag7()
Arguments
Value
Returns a DAG.
Author
Lutz P Breitling <l.breitling@posteo.de>
References
Breitling LP (2010). dagR: a suite of R functions for directed acyclic graphs. Epidemiology 21(4):586-587.
Kn\"uppel S (2009). DAG v0.11 documentation (Oct 21, 2009). https://hsz.dife.de/dag/