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Warning

causy is a prototype. Please report any issues and be mindful when using it in production.

causy

causy is a command line tool that allows you to apply causal inference methods like causal discovery and causal effect estimation. You can adjust causal discovery algorithms with easy to use, extend and maintain pipelines. causy is built based on pytorch which allows you to run the algorithms on CPUs as well as GPUs.

causy workspaces allow you to manage your data sets, algorithm adjustments, and (hyper-)parameters for your experiments.

causy UI allows you to look at your resulting graphs in the browser and gain further insights into every step of the algorithms.

You can find the documentation here.

Installation

Currently, we support python 3.11 and 3.12. To install causy run

pip install causy

Usage

Causy can be used with workspaces via CLI or via code.

Workspaces Quickstart

See options for causy workspace

causy workspace --help

Create a new workspace and start the process to configure your pipeline, data loader and experiments interactively. Your input data should be a json file stored in the same directory.

causy workspace init

Add an experiment

causy workspace experiment add your_experiment_name

Update a variable in the experiment

causy workspace experiment update-variable your_experiment_name your_variable_name your_variable_value

Run multiple experiments

causy workspace execute

Compare the graphs of the experiments with different variable values via a matrix plot

causy workspace diff

Compare the graphs in the UI, switch between different experiments and visualize the causal discovery process

causy ui

Usage via Code

Use a default algorithm

from causy.algorithms import PC
from causy.graph_utils import retrieve_edges

model = PC()
model.create_graph_from_data(
    [
        {"a": 1, "b": 0.3},
        {"a": 0.5, "b": 0.2}
    ]
)
model.create_all_possible_edges()
model.execute_pipeline_steps()
edges = retrieve_edges(model.graph)

for edge in edges:
    print(
        f"{edge[0].name} -> {edge[1].name}: {model.graph.edges[edge[0]][edge[1]]}"
    )

Supported algorithms

Currently, causy supports the following algorithms:

  • PC (Peter-Clark)
    • PC - the original PC algorithm without any modifications causy.algorithms.PC
    • ParallelPC - a parallelized version of the PC algorithm causy.algorithms.ParallelPC

Supported pipeline steps

Detailed information about the pipeline steps can be found in the API Documentation.

Dev usage

Setup

We recommend using poetry to manage the dependencies. To install poetry follow the instructions on https://python-poetry.org/docs/#installation.

Install dependencies

poetry install

Execute tests

poetry run python -m unittest

Funded by the Prototype Fund from March 2024 until September 2024

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