Statsmodels

When you need actual statistical inference with p-values, confidence intervals, and diagnostic tests rather than just predictions, this is your tool. It handles the full spectrum from OLS and logistic regression to ARIMA time series and GLMs with proper hypothesis testing, AIC/BIC model comparison, and publication-ready summary tables. The library can feel academic compared to scikit-learn, but that's the point. You get residual diagnostics, heteroskedasticity tests, marginal effects, and all the econometric rigor that sklearn deliberately leaves out. One gotcha: you must manually add a constant with sm.add_constant() or your intercept will be zero, which trips up newcomers constantly.

skills.sh installs: 426
GitHub stars: 33.2K
last updated: Aug 21, 2026

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Install

$ npx -y skills add davila7/claude-code-templates --skill statsmodels --agent claude-code

Installs into .claude/skills of the current project.

Files

Statsmodels: Statistical Modeling and Econometrics

Overview

Statsmodels is Python's premier library for statistical modeling, providing tools for estimation, inference, and diagnostics across a wide range of statistical methods. Apply this skill for rigorous statistical analysis, from simple linear regression to complex time series models and econometric analyses.

When to Use This Skill

This skill should be used when:

Fitting regression models (OLS, WLS, GLS, quantile regression)
Performing generalized linear modeling (logistic, Poisson, Gamma, etc.)
Analyzing discrete outcomes (binary, multinomial, count, ordinal)
Conducting time series analysis (ARIMA, SARIMAX, VAR, forecasting)
Running statistical tests and diagnostics
Testing model assumptions (heteroskedasticity, autocorrelation, normality)
Detecting outliers and influential observations
Comparing models (AIC/BIC, likelihood ratio tests)
Estimating causal effects
Producing publication-ready statistical tables and inference

Quick Start Guide

Linear Regression (OLS)

import statsmodels.api as sm
import numpy as np
import pandas as pd

SKILL.md on GitHub

Details

Repository: github.com/davila7/claude-code-templates
Category: Data Science & ML
First seen: Jun 3, 2026