In a regression model, a regressor is an explanatory variable used to model or predict the dependent variable. A regressor may be observed independently, constructed from other variables, or, in a dynamic model, be a previous value of the dependent variable at a specified time series lag.
Regressor
See also
Dependent Variable, Independent Variable, Linear Regression, RegressionExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Regressor." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Regressor.html