1. M

    Forward selection of non significant variables

    Hi, In SAS Enterprise Miner, I trained a logistic regression with forward selection and AIC criteria. I grouped rare levels for categorical variables. One of these variables was selected by the algorithm but the coefficients of all categories were statistically not significant (different...
  2. J

    Manual Forward Selection - order of covariates

    Hi all, I have a conceptual model, with different covariates to explain an o=e relationship. I have confounders and effect modifiers. I am unsure, to begin the manual forward selection (for which I will only add variables based on certain criteria), with covariates CLOSER to the main...