Pearson Correlation Calculator
Equal-length paired series must both vary; correlation does not establish causation.
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USDTHE NUMBERS, MADE CLEARInstant calculation
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Equal-length paired series must both vary; correlation does not establish causation.
Worked example
Inputs
- X values (comma-separated): 1,2,3
- Y values (comma-separated): 2,4,6
Results
- Pearson r: 1
Equal-length paired series must both vary; correlation does not establish causation.
Reviewed:Common uses
Equal-length paired series must both vary; correlation does not establish causation.
BEHIND THE NUMBERSFormula & assumptions
r=Σ(xᵢ−x̄)(yᵢ−ȳ)/√(Σ(xᵢ−x̄)²Σ(yᵢ−ȳ)²)
Equal-length paired series must both vary; correlation does not establish causation.