8000 Revert "FIX several bugs in initial predictions for GBDT (#12983)" · xhluca/scikit-learn@7a5c861 · GitHub
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Revert "FIX several bugs in initial predictions for GBDT (scikit-learn#12983)"
This reverts commit 01be549.
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doc/whats_new/v0.21.rst

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@@ -128,13 +128,6 @@ Support for Python 3.4 and below has been officially dropped.
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:class:`ensemble.AdaBoostClassifier` and :class:`ensemble.AdaBoostRegressor`
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:issue:`13174` by :user:`Christos Aridas <chkoar>`.
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- |Fix| Fixed a bug in :class:`ensemble.GradientBoostingClassifier` and
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:class:`ensemble.GradientBoostingRegressor`, which didn't support
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scikit-learn estimators as the initial estimator. Also added support of
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initial estimator which does not support sample weights. :issue:`12436` by
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:user:`Jérémie du Boisberranger <jeremiedbb>` and :issue:`12983` by
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:user:`Nicolas Hug<NicolasHug>`.
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- |Fix| Fixed the output of the average path length computed in
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:class:`ensemble.IsolationForest` when the input is either 0, 1 or 2.
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:issue:`13251` by :user:`Albert Thomas <albertcthomas>`
@@ -144,11 +137,6 @@ Support for Python 3.4 and below has been officially dropped.
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the gradients would be incorrectly computed in multiclass classification
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problems. :issue:`12715` by :user:`Nicolas Hug<NicolasHug>`.
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- |Fix| Fixed a bug in :class:`ensemble.GradientBoostingClassifier` where
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the default initial prediction of a multiclass classifier would predict the
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classes priors instead of the log of the priors. :issue:`12983` by
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:user:`Nicolas Hug<NicolasHug>`.
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- |Fix| Fixed a bug in :mod:`ensemble` where the ``predict`` method would
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error for multiclass multioutput forests models if any targets were strings.
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:issue:`12834` by :user:`Elizabeth Sander <elsander>`.

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