Regression & Residual Analyzer
Fit a numeric regression and inspect coefficients and residuals.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
How to use Regression & Residual Analyzer
- Open or paste your data, or load the working sample.
- Choose columns and explicit processing rules. Review the proposed result and warnings.
- Download the chosen result dataset, JSON artifact or report; save a draft to continue later.
What are the limits of Regression & Residual Analyzer?
Ordinary least squares with intercept and up to 8 predictors; QR least-squares solution rejects rank-deficient designs. Requires more observations than coefficients. Complete numeric rows only, no automatic imputation. Classical standard errors assume independent homoscedastic errors. Diagnostics are descriptive and cannot establish causality. Inputs stay in browser memory. No workbook is created. Table limits: 5 MB total text, 25,000 rows, 64 columns and 200,000 cells; expensive operations have stricter limits. Processing can be cancelled.