2R – Stepwise Regression

Stepwise Regression using BMDP Statistical Software Program 2R

This popular program fits a multiple linear regression equation in a stepwise manner by entering or removing one variable at a time from a list of potential predictors. You can also define sets of variables to enter or remove in a single step and you can force specific variables to enter and remain in the equation.

• Forward and backward stepping
• User-defined sets of variables to enter in 1 step
• Standardized and unstandardized regression coefficients, tolerence, F-to-enter and F-to-remove, partial correlations, R², adjusted R²
• 21 diagnostic statistics, including the standardized residual, and the diagonal elements of the “hat” matrix
• Durbin-Watson statistics and serial correlation
• Case plots of diagnostics
• Options for plotting and saving the residuals, predicted values and regression diagnostics
• View Program BMDP Program 2R Manual Chapter