[python-package] [R-package] propagate the best iteration of cvbooster into the individual boosters#5066
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StrikerRUS merged 1 commit intomicrosoft:masterfrom Mar 12, 2022
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jameslamb
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looks great, thanks!
Can you please add [python-package] [R-package] to the description so people reading the release notes will be able to identify that this PR affected those components?
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This propagates the
best_iterationattribute in the Python package and thebest_iterattribute in the R package from the CV Booster to each individual booster in the boosters list. In the Python package this ensures that callingCVBooster.predictuses the best iteration in all boosters (closes #4777).