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BUG/ENH: singular exog and anova_lm #5398

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josef-pkt opened this issue Nov 26, 2018 · 0 comments

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comp-regression comp-stats type-bug type-enh

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josef-pkt commented Nov 26, 2018

based on a stackoverflow question
https://stackoverflow.com/questions/53489106/why-am-i-getting-a-inf-or-nan-error-even-though-data-has-none

it looks like anova_lm raises an exception with singular exog, maybe an empty cell case.

This needs to be investigated and maybe find a solution, a better exception message or a justification why we want to ignore this specific case.

josef-pkt added type-bug type-enh comp-regression comp-stats labels

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SUMM: singular exog (again) #8721

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