What is the Multiple Regression Calculator?

The Multiple Regression Calculator is a statistical tool that models the relationship between a dependent variable (Y) and multiple independent variables (X₁, X₂, …, Xₘ). By entering rows of X values (one row per observation) and corresponding Y values, the calculator estimates the regression coefficients—including the intercept (b₀) and slopes (b₁, b₂, …)—using gradient descent. These coefficients define the linear equation:
Y = b₀ + b₁X₁ + b₂X₂ + … + bₘXₘ
The calculator also computes predicted Y values for each observation based on the estimated coefficients, helping users understand the influence of each independent variable on the outcome and make predictions.

How to Use:

1. Enter X Values: Input numeric values for each observation, separating values with commas and rows with semicolons.
2. Enter Y Values: Input corresponding dependent variable values, separated by commas.
3. Click “Calculate”: The calculator estimates the intercept and slopes, then predicts Y for each observation.
4. Interpret Results: Use the coefficients to understand how each independent variable affects Y, and use predicted values for prediction or analysis.