Action #570
Feature #912: Implement an ON-OFF fitter class
Test case script
| Status: | Closed | Start date: | 10/10/2012 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assigned To: |  Martin Pierrick | % Done: | 0% | |
| Category: | - | Estimated time: | 8.00 hours | |
| Target version: | HESS sprint #1 | |||
| Duration: |
Description
As part of the project to extend the gammalib to allow the analysis of data from Cherenkov telescopes with the classical ON and OFF technique, a virtual python script for an ON-OFF analysis was written to illustrate how we would like the objects to be organized and thus help structuring the code.
cta_classic.py 
(1.66 KB)
CTAClassicalAnalysis.py
(3 KB)
CTAClassicalAnalysis.py
(3.53 KB)
Script-Deil.py
(2.55 KB)
Script-Wiki.py
(2.49 KB)
Recurrence
No recurrence.
History
#1
Updated by Knödlseder Jürgen about 12 years ago
- Description updated (diff)
#2
Updated by Knödlseder Jürgen over 11 years ago
- File cta_classic.py added
Attached a test case for using the on-off fitter.
#3
Updated by Martin Pierrick over 11 years ago
- File CTAClassicalAnalysis.py added
Here is an extended version of the draft script posted by Jürgen, with more steps and a a lot of remarks/questions as comments to the code. Still a draft, just to help clarify our thoughts. Will be refined once the structure of the GOnOffFitter class is established.
#4
Updated by Deil Christoph over 11 years ago
I think (at least in the background) there should be more classes to make it more flexible.
In HD / HAP we have a Spectrum and Maps (called BgMaps) container classes that are filled by the SpectrumMaker and various BgMakers.
The modelling / fitting (using On-off likelihood or Fermi-style likelihood or even Chi^2) then happens as the last step of the analysis with Spectrum or Maps as input.
Probably for this API discussion one really needs to look at other use cases as well, e.g. a ring-background or on-off background map-based analysis as described in the Berge paper: http://adsabs.harvard.edu/abs/2007A%26A...466.1219B
#5
Updated by Martin Pierrick over 11 years ago
- File CTAClassicalAnalysis.py added
- Subject changed from Design on-off maximum likelihood fitter. to Test case script
- Description updated (diff)
- Status changed from New to In Progress
- Assigned To changed from Knödlseder Jürgen to Martin Pierrick
- Parent task changed from #540 to #912
#6
Updated by Martin Pierrick over 11 years ago
- File Script-Deil.py added
- File Script-Wiki.py added
New versions of the analysis scripts written during the coding sprint in Toulouse, with the list and typical layout of the objects needed. The first version was written by Christoph and then modified/improved by someone else before posting on the wiki. I have moved/copied both to their proper place here.
#7
Updated by Knödlseder Jürgen about 11 years ago
- Status changed from In Progress to Closed
- Remaining (hours) changed from 8.0 to 0.0