A python library with tools to perform causal inference using observational data when the treatment of interest is continuous.
Python tools to perform causal inference when the treatment of interest is continuous.
Table of Contents
(Version 1.0.0 released in January 2021!)
There are many implemented methods to perform causal inference when your intervention of interest is binary, but few methods exist to handle continuous treatments.
This is unfortunate because there are many scenarios (in industry and research) where these methods would be useful. For example, when you would like to:
- Estimate the causal response to increasing or decreasing the price of a product across a wide range.
- Understand how the number of minutes per week of aerobic exercise causes positive health outcomes.
- Estimate how decreasing order wait time will impact customer satisfaction, after controlling for confounding effects.
- Estimate how changing neighborhood income inequality (Gini index) could be causally related to neighborhood crime rate.
This library attempts to address this gap, providing tools to estimate causal curves (AKA causal dose-response curves). Both continuous and binary outcomes can be modeled against a continuous treatment.
Available via PyPI:
pip install causal-curve
You can also get the latest version of causal-curve by cloning the repository::
git clone -b main https://github.com/ronikobrosly/causal-curve.git cd causal-curve pip install .
Your help is absolutely welcome! Please do reach out or create a feature branch!
Kobrosly, R. W., (2020). causal-curve: A Python Causal Inference Package to Estimate Causal Dose-Response Curves. Journal of Open Source Software, 5(52), 2523, https://doi.org/10.21105/joss.02523
Galagate, D. Causal Inference with a Continuous Treatment and Outcome: Alternative Estimators for Parametric Dose-Response function with Applications. PhD thesis, 2016.
Hirano K and Imbens GW. The propensity score with continuous treatments. In: Gelman A and Meng XL (eds) Applied bayesian modeling and causal inference from incomplete-data perspectives. Oxford, UK: Wiley, 2004, pp.73–84.
Imai K, Keele L, Tingley D. A General Approach to Causal Mediation Analysis. Psychological Methods. 15(4), 2010, pp.309–334.
Kennedy EH, Ma Z, McHugh MD, Small DS. Nonparametric methods for doubly robust estimation of continuous treatment effects. Journal of the Royal Statistical Society, Series B. 79(4), 2017, pp.1229-1245.
Moodie E and Stephens DA. Estimation of dose–response functions for longitudinal data using the generalised propensity score. In: Statistical Methods in Medical Research 21(2), 2010, pp.149–166.
van der Laan MJ and Gruber S. Collaborative double robust penalized targeted maximum likelihood estimation. In: The International Journal of Biostatistics 6(1), 2010.
van der Laan MJ and Rubin D. Targeted maximum likelihood learning. In: U.C. Berkeley Division of Biostatistics Working Paper Series, 2006.
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