TreeSimulator.py

​

High-level description

The TreeSimulator class is an abstract base class for all tree simulators in Cassiopeia. It defines the basic interface for simulating single-cell phylogenies, requiring derived classes to implement a simulate_tree method that returns a CassiopeiaTree object representing the simulated phylogeny. This enables users to generate ground truth phylogenies for evaluating different reconstruction and analysis methods.

​

References

This class is referenced in other parts of the codebase, particularly in concrete simulator implementations like BirthDeathFitnessSimulator, CompleteBinarySimulator, and SimpleFitSubcloneSimulator. These classes inherit from TreeSimulator and provide specific simulation algorithms.

​

Symbols

​

TreeSimulator

​

Description

This is an abstract base class for all tree simulators. It defines the blueprint for simulating single-cell phylogenies.

​

Inputs

This class does not have an init method and therefore does not take any inputs.

​

Outputs

This class does not directly return any outputs.

​

Internal Logic

The class uses the abc module to define the simulate_tree method as an abstract method, ensuring that all concrete subclasses must implement this method.

​

simulate_tree

​

Description

An abstract method that needs to be implemented by all derived classes. This method should simulate a CassiopeiaTree with at least its tree topology initialized.

​

Inputs

This method does not take any inputs.

​

Outputs

​

Internal Logic

This method is abstract and therefore does not have any internal logic defined in the base class. Concrete subclasses are responsible for implementing the specific simulation logic.