regress()

Statistics

regress() is a MATLAB®-compatible statistics function for multiple linear regression via least squares. solves y = x*b using normal equations. x is a design matrix (include a column of ones for intercept). returns { b, residuals, r2 } with coefficients, residuals, and r-squared. Run it online in your browser with SimLab — free, no install, no license required.

▶ Try regress() in SimLab — Free

Syntax

regress(y, X)

Examples — run regress() in your browser

y = [1; 2; 3; 4; 5]; X = [[1, 1]; [1, 2]; [1, 3]; [1, 4]; [1, 5]]; regress(y, X)

▶ Run

result = regress([2, 4, 6], [[1, 1]; [1, 2]; [1, 3]]); result.b

▶ Run

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Frequently Asked Questions about regress()

Is the regress() function free to use in SimLab?

Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run regress() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.

Do I need to install MATLAB to use regress()?

No. SimLab runs entirely in your web browser with zero installation. The regress() function works without any MATLAB® license or software download.

What does regress() do?

Multiple linear regression via least squares. Solves y = X*b using normal equations. X is a design matrix (include a column of ones for intercept). Returns { b, residuals, r2 } with coefficients, residuals, and R-squared. It is a MATLAB®-compatible statistics function available in SimLab with the same calling syntax as MATLAB® — typically: regress(y, X).

Can I run regress() in my browser?

Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls regress(), and run it. Execution happens locally in your browser — no data leaves your machine.

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