Ticket #4734 (closed: fixed)
Handle 'weight' for each MDEvent
| Reported by: | Janik Zikovsky | Owned by: | Andrei Savici |
|---|---|---|---|
| Priority: | major | Milestone: | Release 3.4 |
| Component: | Framework | Keywords: | |
| Cc: | saviciat@… | Blocked By: | |
| Blocking: | Tester: | Harry Jeffery |
Description (last modified by Andrei Savici) (diff)
The properly normalized signal for a box or a bin in MDHisto is:
Sum( event signal * event 'weight' ) / sum ( weights )
Where the weight of each 'event' is proportional to its solid angle * its width in energy transfer. For MDLeanEvent, weight would be 1.0 always. For MDEvent, it should either be cached or calculated on the fly (from the run number and detector ID).
- Each MDEvent carries run index and detector id which is enough to find the weight, but do we want to cache it ?
- Also , BinMD and the other integration methods would need to calculate the sum of the weight as they sum the signal.
- See also #4733 where BinMD needs to track it
Change History
comment:4 Changed 9 years ago by Janik Zikovsky
Refs #4734 carry a TotalWeight field in MDBoxes
Changeset: 8aed22bf9fb2e18ee3089de1d7bb8d00d7a0e9f4
comment:6 Changed 8 years ago by Janik Zikovsky
- Status changed from accepted to assigned
- Owner changed from Janik Zikovsky to Andrei Savici
comment:7 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.2 to Release 2.3
Moved at the end of release 2.2
comment:8 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.3 to Release 2.4
Moved to milestone 2.4
comment:9 Changed 8 years ago by Nick Draper
- Milestone changed from Release 2.4 to Release 2.5
Moved at the code freeze for release 2.4
comment:14 Changed 7 years ago by Nick Draper
- Status changed from new to assigned
Bulk move to assigned at the introduction of the triage step
comment:15 Changed 6 years ago by Andrei Savici
- Status changed from assigned to verify
- Resolution set to duplicate
- Description modified (diff)
This is going to be part of #9105
comment:16 Changed 6 years ago by Harry Jeffery
- Status changed from verify to verifying
- Tester set to Harry Jeffery
comment:18 Changed 6 years ago by Nick Draper
- Milestone changed from Backlog to Release 3.4
moved to r 3.4 as tickets are closed
comment:19 Changed 5 years ago by Nick Draper
- Resolution changed from duplicate to fixed
Somehow these slipped through without a resolution. Set to Fixed.
comment:20 Changed 5 years ago by Stuart Campbell
This ticket has been transferred to github issue 5581
