title: Exhaustive Model Selection using One or More Factor Variables in R
body: <p>I am attempting to construct a Linear Model based on a large number of explanatory variables (including interaction terms between variables) two of which are factor variables. Using a factor variable in either regsubsets() or leaps() causes an error. Is there another function or package I can use that will incorporate factor variables when attempting exhaustive model selection?</p>
  
  <p>Thank You</p>
  
  <p>James</p>