Click on Learn for a step by step tutorial about DAGs with interactive exercises.
Click on Launch to start making DAGs:
The “How To” drop down menu is very helpful to get you started making DAGs:
You use the “Model” drop down menu to create new model, load from, publish on, update from, delete from dagitty.net, or export the graphic itself. If you select choose a new model you immediately need to name your Exposure (can also consider an intervention, cause) and Outcome (effect). If you want to save the code you simply cut and paste the code into a text file.
To reorganize the layout you can simply click and drag the nodes (variables) around the workspace:
The “Examples” drop down will provide - well - example DAGs from publications (a great way to learn more about DAGs is to get those papers and compare with the posted DAGs). “Layout” will automatically reorganize the nodes and edges of the graph, and “Help” will open a PDF of the DAGitty manual, which you will be familiar with already from having looked through the DAGitty/Learn page.
In upcoming posts I will continue to provide examples and explanations of DAGs and try to make more explicit connections back to how we got here from where the blog started, how DAGs connect to KBP as a clinical epistemology founded on a critical realist perspective, how DAGs provide an explicit interaction between the empirical and the rationale for developing a knowledge based practice.