Ancova to support > 2 arms

[gowerc]

[gowerc]

@wolbersm , Can we confirm if we want this or not for the first CRAN release ? After a brief call with @nociale we were learning towards this not being required for the first CRAN release

[wolbersm]

@gowerc Yes, fine from my side.

[danielinteractive]

I am revisiting this topic at the moment, maybe in the future I can contribute a PR

[tobiasmuetze]

We also have been looking into this recently and wrote our own ANCOVA function to address this issue. Tagging @bailliem