Polynomial Regression Calculator

Find a polynomial line of best fit with this polynomial regression calculator

Accepts csv, parquet, arrow, json and tsv


How to perform polynomial regression online

Polynomial regression
  1. Upload your dataset
  2. Select the independent (X) and dependent (Y) variables
  3. Select the fit order
  4. The regression analysis will be performed
  5. Download, share or embed the results

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Polynomial Regression models the relationship between the input variables with an nth-degree polynomial model. This means it can fit non linear relationships between the input variables.

Polynomial regression is a type of linear regression analysis. Cubic regression is a special case of polynomial regression where a cubic function is fit. Quadratic regression is a special case of polynomial regression where a second-order function is fit.

Polynomial regression is a useful tool when the relationship between the input data can be modeled accurately with a polynomial function. If the relationship can be better modeled with a straight line, then the linear regression calculator would be a more useful tool.

If it looks like there is an exponential relationship between the input data then the exponential regression calculator is a better tool to use.

When To Use Polynomial Regression

Polynomial regression is a useful tool when the relationship between the input data can be modeled accurately with a polynomial function. If it looks like there is an exponential relationship between the input data then the exponential regression calculator is a better tool to use.