chi2inv()

Statistics

chi2inv() is a MATLAB®-compatible statistics function for inverse chi-squared cdf (quantile function). returns x such that chi2cdf(x, df) = p. uses newton iteration with wilson-hilferty initial guess. Run it online in your browser with SimLab — free, no install, no license required.

Inverse chi-squared CDF (quantile function). Returns x such that chi2cdf(x, df) = p. Uses Newton iteration with Wilson-Hilferty initial guess.

Syntax

chi2inv(p, df)

Examples — run chi2inv() in your browser

chi2inv(0.95, 2)
▶ Run
chi2inv(0.99, 5)
▶ Run

See Also

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Frequently Asked Questions about chi2inv()

Is the chi2inv() function free to use in SimLab?

Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run chi2inv() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.

Do I need to install MATLAB to use chi2inv()?

No. SimLab runs entirely in your web browser with zero installation. The chi2inv() function works without any MATLAB® license or software download.

What does chi2inv() do?

Inverse chi-squared CDF (quantile function). Returns x such that chi2cdf(x, df) = p. Uses Newton iteration with Wilson-Hilferty initial guess. It is a MATLAB®-compatible statistics function available in SimLab with the same calling syntax as MATLAB® — typically: chi2inv(p, df).

Can I run chi2inv() in my browser?

Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls chi2inv(), and run it. Execution happens locally in your browser — no data leaves your machine.

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