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Issue with fitting when y_err is 0 #17

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opened 2020-11-02 11:16:47 +01:00 by usov_i · 0 comments
usov_i commented 2020-11-02 11:16:47 +01:00 (Migrated from gitlab.psi.ch)
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Created by: ivan-usov

The fitting routine doesn't seem to handle the situation with y_err being 0 for any point of data. In the following code:
cfe9832c1e/pyzebra/fit2.py (L134-L136)
it will encounter division by 0 in weights calculation, which apparently breaks mod.fit function.

*Created by: ivan-usov* The fitting routine doesn't seem to handle the situation with y_err being 0 for any point of data. In the following code: https://github.com/paulscherrerinstitute/pyzebra/blob/cfe9832c1e09feb0c6474a0d54894bd41301cdbc/pyzebra/fit2.py#L134-L136 it will encounter division by 0 in `weights` calculation, which apparently breaks `mod.fit` function.
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Reference: zebra/pyzebra#17
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