Since meanRunner is centered on meanYear, the effects are just additive. You can do meanYear[year_idx] + meanRunner[runner_idx]. You data should be in long form, as in the issue I linked.
1 Like
Since meanRunner is centered on meanYear, the effects are just additive. You can do meanYear[year_idx] + meanRunner[runner_idx]. You data should be in long form, as in the issue I linked.