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I believe that a lot of the XSPEC module code - i.e. most of `_xspec.cc` and `__init__.py` - should be auto-generated based on the contents of the `model.dat` file in the XSPEC distribution. The main …
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Relevant for the forthcoming "regrid + integrate" discussion.
If I combine two models, say
combined = mdl1 * mdl2
where the `integrate` flags are False and True, should we set the `integra…
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[I am sure I did some testing with the XSPEC models, but it may have been with some low-level code, since there are two issues I've found testing #798]
1) if you call `.regrid` on an XSPEC model to…
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Found from adding typing rules (the error was that `mypy` noted that `len(self.channel)` was not guarded by a "but you may not have data" check):
```
% python
Python 3.11.4 (main, Jul 5 2023, 13:4…
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Sphinx doesn't like the way I have `sherpa.astro.xspec` included in the ReadTheDocs documentation (two separate pages, one for "functions" and one for "models"). I should re-write so there's only one …
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Dear developer,
I am currently (in tears) trying to build sherpa from source in a conda environment that already contains ciao and astropy since the default conda version of sherpa I originally use…
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Currently, the default for LevMar, NelderMead, etc. is set to epsilon for single precision float `'epsfcn': 1.1920928955078125e-07`. Why was it chosen this way?
I don't think anyone still uses mac…
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For XSAdditive models, we can cache the data with norm = 1, and then just multiply the cache value by norm. This would technically be faster (since there are times when we end up evaluating the model …
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This is a long-term goal I'd like done, but don't have time for and want to get my thoughts down so it isn't forgotten. If anyone would like to work on this I'd be more-than-happy to provide pointers!…
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When looking at energy flux from complex objects \(i.e. magnetars\), the calculation is often depending on xspec fits and models used.
A model independent energy flux calculation could be implement…