hypex 0.0.4

Fast and customizable framework for Causal Inference

HypEx: Advanced Causal Inference and AB Testing Toolkit

Introduction

HypEx (Hypotheses and Experiments) is a comprehensive library crafted to streamline the causal inference and AB testing processes in data analytics. Developed for efficiency and effectiveness, HypEx employs Rubin's Causal Model (RCM) for matching closely related pairs, ensuring equitable group comparisons when estimating treatment effects.

Boasting a fully automated pipeline, HypEx adeptly calculates the Average Treatment Effect (ATE), Average Treatment Effect on the Treated (ATT), and Average Treatment Effect on the Control (ATC). It offers a standardized interface for executing these estimations, providing insights into the impact of interventions across various population subgroups.

Beyond causal inference, HypEx is equipped with robust AB testing tools, including Difference-in-Differences ( Diff-in-Diff) and CUPED methods, to rigorously test hypotheses and validate experimental results.

Features

• Faiss KNN Matching: Utilizes Faiss for efficient and precise nearest neighbor searches, aligning with RCM for optimal pair matching.
• Data Filters: Built-in outlier and Spearman filters ensure data quality for matching.
• Result Validation: Offers multiple validation methods, including random treatment, feature, and subset validations.
• Data Tests: Incorporates SMD, KS, PSI, and Repeats tests to affirm the robustness of effect estimations.
• Automated Feature Selection: Employs LGBM feature selection to pinpoint the most impactful features for causal analysis.
• AB Testing Suite: Features a suite of AB testing tools for comprehensive hypothesis evaluation.
• Stratification support: Stratify groups for nuanced analysis
• Weights support: Empower your analysis by assigning custom weights to features, enhancing the matching precision to suit your specific research needs

Quick Start

Explore usage examples and tutorials here.

Installation

pip install hypex

Quick start

Matching example

from hypex import Matcher
from hypex.utils.tutorial_data_creation import create_test_data

# Define your data and parameters
df = create_test_data(rs=42, na_step=45, nan_cols=['age', 'gender'])

info_col = ['user_id']
outcome = 'post_spends'
treatment = 'treat'
model = Matcher(input_data=df, outcome=outcome, treatment=treatment, info_col=info_col)
results, quality_results, df_matched = model.estimate()

AA-test example

from hypex import AATest
from hypex.utils.tutorial_data_creation import create_test_data

data = create_test_data(rs=52, na_step=10, nan_cols=['age', 'gender'])

info_cols = ['user_id', 'signup_month']
target = ['post_spends', 'pre_spends']

experiment = AATest(info_cols=info_cols, target_fields=target)
results = experiment.process(data, iterations=1000)
results.keys()

AB-test example

from hypex import ABTest
from hypex.utils.tutorial_data_creation import create_test_data

data = create_test_data(rs=52, na_step=10, nan_cols=['age', 'gender'])

model = ABTest()
results = model.execute(
    data=data, 
    target_field='post_spends', 
    target_field_before='pre_spends', 
    group_field='group'
)

model.show_beautiful_result()

Documentation

For more detailed information about the library and its features, visit our documentation on ReadTheDocs.

You'll find comprehensive guides and tutorials that will help you get started with HypEx, as well as detailed API documentation for advanced use cases.

Community and Contributions

Join our vibrant community! For guidelines on contributing, reporting issues, or seeking support, please refer to our Contributing Guidelines.

Success Stories

Discover how HypEx is revolutionizing causal inference in various fields. Check out our featured article on Habr (ru).

Join Our Community

Have questions or want to discuss HypEx? Join our Telegram chat and connect with the community and the developers.

Conclusion

HypEx stands as an indispensable resource for data analysts and researchers delving into causal inference and AB testing. With its automated capabilities, sophisticated matching techniques, and thorough validation procedures, HypEx is poised to unravel causal relationships in complex datasets with unprecedented speed and precision.