Tools / Data Analysis
Polynomial Regression & Graph
Select two columns from up to five data series and twenty rows, then create a degree 1–5 polynomial and graph.
Step 1
Enter data
Column names are editable. Copy a cell range from Excel or a spreadsheet and paste it into the upper-left data cell to fill several cells at once.
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Step 2
Choose columns and degree
Result
Regression result
Fitted polynomial
- Data points
- R²
- RMSE
All calculations stay in your browser; the entered data is not transmitted. This tool uses numerical least-squares regression. Higher-degree polynomials can oscillate strongly between data points, so inspect both the graph and the reported metrics.