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Tree diagram may refer to:

• Tree structure, a way of representing the hierarchical nature of a structure in a graphical form

Mathematics and logic

• Tree diagram (probability theory), a diagram to represent a probability space in probability theory
• Decision tree, a decision support tool that uses a tree-like graph or model of decisions and their possible consequences
• Event tree, inductive analytical diagram in which an event is analyzed using Boolean logic
• Game tree, a tree diagram used to find and analyze potential moves in a game

Linguistics

• Language tree, representation of a group of languages related through descent from a common ancestor
• Parse tree, a representation of the syntactic structure of a string according to some formal grammar in linguistics
  • Sentence diagram, a pictorial representation of the grammatical structure of a sentence showing the relationships of phrase structures

Biology

• Dendrogram, a tree diagram used to illustrate clusters of genes or samples in computational biology
• Phylogenetic tree, a branching diagram showing the inferred evolutionary relationships among various biological species

Other uses

• Attack tree, conceptual diagrams showing how a target might be attacked
• Fault tree diagram, diagram used in deductive failure analysis in various industries
• Program structure tree, hierarchical diagram that displays the organization of a computer program
• Treemapping, a method for displaying hierarchical data using nested figures, usually rectangles.

See also

• Tree topology, a topology based on a hierarchy of nodes in a computer network
• Tree diagram (physics), an acyclic Feynman diagram, pictorial representations of the mathematical expressions governing the behavior of subatomic particles
• Outliners, a common software application that is used to generate tree diagrams
• Network diagram
• Tree (disambiguation)
• Descent (disambiguation)

• Disambiguation pages