[PyMca] Baseline calculation using SNIPModule.py

[PyMca g. p. m. list. <pym...@li...>]

Dear PyMca community,
I am attempting to calculate the XRF spectrum baseline itself (without the fit) using the PyMca module, specifically using the SNIP algorithm. While searching on GitHub, I found the SNIPModule.py and tried to import it to use the function getSpectrumBackground(spectrum, width, roi_min=None, roi_max=None, smoothing=1). However, when importing the module, I encountered the following error:
ImportError: cannot import name 'SpecfitFuns' from 'PyMca5.PyMca.fitting' (/opt/micromamba/envs/pymca_env/lib/python3.8/site-packages/PyMca5/PyMcaGui/math/fitting/__init__.py)

It seems that I already have the compiled version of SpecfitFuns, but I am unsure what went wrong. I am attaching an image of the terminal for your review.

Additionally, I would like to confirm if this is the proper way to calculate the baseline using the SNIP algorithm without any graphical interface. I have already created a script to perform the fit using the methods ClassMcaTheory().estimate() and startfit(), along with a configuration file specifying the parameters. If I’m not mistaken, the "continuum" key in the result of  startfit() represents the baseline, correct? Is there a way to obtain the baseline without having to perform the fit first?

I would greatly appreciate any advice or guidance on how to resolve this issue.
Best regards,

Ana Júlia
Intern at Sirius - The Brazilian Synchrotron Light Laboratory (LNLS)




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