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py-econometrics
within
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fix(lsmr): underflowed norms, Givens update scale, LSMR's own residual estimate
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schroedk
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Sep 23, 2026
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fix(lsmr): underflowed norms, Givens update scale, LSMR's own residual estimate
#391
schroedk
merged 4 commits into
main
py-econometrics/within:main
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fix/lsmr-numerics
py-econometrics/within:fix/lsmr-numerics
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fix(lsmr): recover the scale of a norm that underflowed its squared form
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fix(lsmr): divide the solution update by one Givens diagonal at a time
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fix(lsmr): estimate LSMR's own residual, not LSQR's
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docs(changelog): tighten the LSMR numerics entries
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