Function Reference Overview

Quick reference to all Statistics extension functions.

Function Finder

What I Want	Function	Category
Fit linear regression	anofox_statistics_ols	Models
Handle multicollinearity	anofox_statistics_ridge	Models
Weighted regression	anofox_statistics_wls	Models
Online learning	anofox_statistics_rls	Models
Feature selection	anofox_statistics_elastic_net	Models
Test significance	anofox_statistics_ols_inference	Inference
Prediction intervals	anofox_statistics_ols_predict_interval	Inference
Batch predict	anofox_statistics_model_predict	Inference
Detect multicollinearity	anofox_statistics_vif	Diagnostics
Check normality	anofox_statistics_normality_test	Diagnostics
Residual analysis	anofox_statistics_residual_diagnostics	Diagnostics
Model comparison	anofox_statistics_information_criteria	Diagnostics
Per-group models	anofox_statistics_ols_agg	Aggregates
Rolling models	anofox_statistics_ols_agg OVER	Aggregates

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Function Categories

Regression Models (5)

• anofox_statistics_ols - Ordinary Least Squares
• anofox_statistics_ridge - Ridge Regression
• anofox_statistics_wls - Weighted Least Squares
• anofox_statistics_rls - Recursive Least Squares
• anofox_statistics_elastic_net - Elastic Net

Inference (3)

• anofox_statistics_ols_inference - Hypothesis tests and CIs
• anofox_statistics_ols_predict_interval - Prediction intervals
• anofox_statistics_model_predict - Batch prediction

Diagnostics (4)

• anofox_statistics_vif - Variance Inflation Factor
• anofox_statistics_normality_test - Jarque-Bera test
• anofox_statistics_residual_diagnostics - Leverage, Cook's D
• anofox_statistics_information_criteria - AIC, BIC

Aggregates (All _agg suffix)

• anofox_statistics_ols_agg - GROUP BY
• anofox_statistics_ridge_agg - GROUP BY Ridge
• Plus WLS, RLS, Elastic Net aggregates
• Plus diagnostic aggregates

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Next Steps

• Regression Models — Complete API
• Inference — Tests and intervals
• Diagnostics — Validation functions
• Aggregates — GROUP BY and OVER