statsmodels

Fit OLS, GLM, and time-series models with diagnostics in Python.

15|2|Updated Dec 17, 2025
One-click install
npx skills add https://github.com/rubensliv/k-dense-ai --skill statsmodels-rubensliv
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: statsmodels
Source: https://github.com/rubensliv/k-dense-ai/tree/main/scientific-skills/statsmodels
Command: npx skills add https://github.com/rubensliv/k-dense-ai --skill statsmodels-rubensliv

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Statsmodels provides a comprehensive toolkit for building, diagnosing, and interpreting statistical models in Python, enabling rigorous inference and econometric analysis.

Core Features & Use Cases

  • Linear and generalized linear modeling: OLS, WLS, GLS, GLM with various families and links.
  • Time-series and econometric methods: ARIMA, SARIMAX, VAR, state-space models, mixed-effects, residual diagnostics.
  • Robust inference and diagnostics: Robust standard errors, hypothesis testing, information criteria (AIC/BIC), model comparison.
  • Formula API and interpretability: R-style formulas, easy handling of categorical variables, marginal effects.
  • Use Case: Econometric analyses, causal inference, forecasting, policy evaluation.

Quick Start

Fit a basic OLS model to your data and display the full summary.

Frequently Asked Questions about statsmodels

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run OLS regression with robust standard errors in Python?

You can run OLS regression with robust standard errors using statistical modeling tools like statsmodels, which supports linear modeling and diagnostic tests for econometric inference. It provides comprehensive results summaries including robust standard errors and hypothesis testing outputs.

What is the best way to fit ARIMA and SARIMAX time-series models for econometric analysis?

Fitting ARIMA and SARIMAX time-series models for econometric analysis requires a statistical modeling framework that supports state-space models and comprehensive diagnostics. These frameworks enable rigorous time-series forecasting and policy evaluation directly within Python.

Can I use an R-style formula API for generalized linear modeling with categorical variables?

Yes, you can use an R-style formula API for generalized linear modeling with categorical variables using statistical modeling frameworks like statsmodels. This approach allows easy handling of categorical data, marginal effects calculation, and fitting GLM models with various families and links.

Does statsmodels support mixed-effects models and VAR for time-series analysis?

Yes, statistical modeling frameworks like statsmodels support mixed-effects models and VAR for time-series analysis and econometric inference. It enables fitting MixedLM, VAR, and state-space models with comprehensive diagnostic tests and model comparison using information criteria like AIC and BIC.

What are the limitations of using Python for causal inference and econometric analysis?

Limitations of using Python for causal inference and econometric analysis include potential complexities in specifying mixed-effects models and interpreting residual diagnostics for non-standard distributions. Users must carefully handle model specification and robust standard errors to avoid invalid econometric conclusions.