| dat | A data frame contains dependent variable and continuous independent variables |
| glm.best | Title: Fitting generalized linear models for the best model |
| glmdat | A data frame contains dependent variable and binary independent variables |
| lm.best | Title: Fitting linear models for the best model |
| modelselect.glm | Title: Variable selection for generalized linear models |
| modelselect.lm | Title: Variable selection for linear models |