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@amarini amarini commented Sep 11, 2021

status as discussed here: https://indico.cern.ch/event/1053527/?showDate=all&showSession=8
I put this as PR for reference.
still needs work and validation (don't merge).

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Presumably this PR is now superseded by the work ongoing in the AD (eg #1019)?

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amarini commented Aug 20, 2025

Yeah ... this is possibly superseeded especially if implemented directly in roofit, which should end up be much more performant. In fact, there were interplays with caching that I didn't resolve and one needs to keep an eye on.
It can still be used for debugging (the access the exact parameters and to the gradient could be powerful).
Maybe I will use a similar structure for something different.

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