Make Offset(“bin”) usable for CLs method

[dpiparo]

Feature description

Currently, the Offset(“bin”) feature cannot be used for

• RooMinimizer (ROOT: RooMinimizer Class Reference)
• ProfileLikelihoodTestStat (ROOT: RooStats::ProfileLikelihoodTestStat Class Reference)
• UseNLLOffset (ROOT: RooStats Namespace Reference)

It is really nice if we can use Offset(“bin”) for those cases. For instance, ProfileLikelihoodTestStat is used for CLs method (ROOT: tutorials/roostats/StandardHypoTestInvDemo.C File Reference 1). Currently, we cannot use Offset(“bin”) for CLs method if we do not compile ROOT personally. Is there any plan to implement it?

Alternatives considered

No response

Additional context

No response