Does anyone have advice on how best to handle this?
1. Tell my tester "Tough, you can't use dots in a formula in my
package".essentially what the survey package seems to do. Encourage the
use of survey::make.formula()?
2. Fix Approach #1 to search for duplicates in the weights, observation
ID,and strata parameters. Any elegant ways to do that?
3. Fix Approach #2, the coxph style, to try to remove redundant
covariates.
Not sure if there's a graceful way not involving string matching
4. Any existing elegant approaches to interpreting the dot? Or should I
just do string matching to delete duplicate variables from the terms
object.