Graph tutor demos

Active Tutors

These are development versions of tutors that are published.

• Find Active Nodes (X d-sep Y | ∅)
• Find Active Nodes (X d-sep Y | {Z2})
• Specifying Probabilities (X Y)
• Specifying Probabilities (X->Y, X is ternary)
• Specifying Probabilities (X->Y)
• Specifying Probabilities (X<-Y)
• Specifying Probabilities (X->Z<-Y)
• Specifying Probabilities (Z<-X->Y->Z)
• Specifying Probabilities (BMI 4 node graph with restrictions)
• Determine d-separation (Z3 d-sep Z1 | ∅)
• Determine d-separation (Z3 d-sep Z1 | {Y})
• Hard Intervention
• Find the Ancestors
• Find the Children
• Find the Colliders on a Path
• Find the Descendants
• Find the Parents
• Find the paths in which a given nodes is a collider
• Find the Directed Paths
• Find All the Treks
• Find the Undirected Paths
• Soft Intervention

Beta Version Tutors

These tutors are ready for people to play with and give feedback on.

• Specifying Probabilities (X->Y, X & Y are ternary)
• Specifying Probabilities (X->Z<-Y, X and Z are ternary and Y is binary)
• Identify Common Causes (Needs review)
• Identify Common Effects (Needs review)
• Find the Longest Undirected Path (needs review)

Alpha Version Tutors

These are tutors that are in development, are for technology demonstrations, or are otherwise only partially complete. They should not crash but do not expect to learn anything about causal graphs from them.

• Asthma and Obesity (Story Problem, no hints)
• Specifying SEM (Z<-X->Y->Z, no hints)

Tools

• TETRAD Graph Converter

Links to external resources.

• CTAT Documentation
• CTAT Main Page
• Cytoscape JS (graph renderer)