# Utilities

In this section, we would like to introduce utilities in causal-learn, such as graph operations and evaluations.

Contents:

- Graph operations
  - DAG2CPDAG
    - Usage
    - Parameters
    - Returns
  - DAG2PAG
    - Usage
    - Parameters
    - Returns
  - PDAG2DAG
    - Usage
    - Parameters
    - Returns
  - TXT2GeneralGraph
    - Usage
    - Parameters
    - Returns
- Evaluations