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13 lines
449 B
Markdown
13 lines
449 B
Markdown
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toc_priority: 107
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---
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# corr {#corrx-y}
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Syntax: `corr(x, y)`
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Calculates the Pearson correlation coefficient: `Σ((x - x̅)(y - y̅)) / sqrt(Σ((x - x̅)^2) * Σ((y - y̅)^2))`.
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!!! note "Note"
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This function uses a numerically unstable algorithm. If you need [numerical stability](https://en.wikipedia.org/wiki/Numerical_stability) in calculations, use the `corrStable` function. It works slower but provides a lower computational error.
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