Re: [R] glm StepAIC with all interactions and update to remove a term vs. glm specifying all but a few terms and stepAIC

At 12:49 26/01/2009, Robert Michael Inman wrote: Problem: I am sorting through model selection process for first time and want to make sure that I have used glm, stepAIC, and update correctly. Something is strange because I get a different result between: 1) a glm of 12 predictor variables

[R] glm StepAIC with all interactions and update to remove a term vs. glm specifying all but a few terms and stepAIC

Problem: I am sorting through model selection process for first time and want to make sure that I have used glm, stepAIC, and update correctly. Something is strange because I get a different result between: 1) a glm of 12 predictor variables followed by a stepAIC where all interactions are