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[MRG+1] NaN handling MinMaxScaler#11005

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rth merged 13 commits intoscikit-learn:masterfrom
LucijaGregov:nan-handling-minmax-scaler
Apr 21, 2018
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[MRG+1] NaN handling MinMaxScaler#11005
rth merged 13 commits intoscikit-learn:masterfrom
LucijaGregov:nan-handling-minmax-scaler

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@LucijaGregov LucijaGregov commented Apr 21, 2018

Reference Issues/PRs

partially adressed #10404

What does this implement/fix? Explain your changes.

Pass-through NaN value in MinMaxScaler

Any other comments?

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@glemaitre

@glemaitre glemaitre changed the title (WiP) Nan handling minmax scaler [WIP] Nan handling minmax scaler Apr 21, 2018
@glemaitre glemaitre changed the title [WIP] Nan handling minmax scaler [WIP] NaN handling MinMaxScaler Apr 21, 2018
estimator=self, dtype=FLOAT_DTYPES,
force_all_finite="allow-nan")

data_min = np.min(X, axis=0)
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it should be np.nanmin because np.min([1, 2, 3, np.nan]) will return np.nan

force_all_finite="allow-nan")

data_min = np.min(X, axis=0)
data_max = np.max(X, axis=0)
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np.max -> np.nanmax

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@glemaitre glemaitre changed the title [WIP] NaN handling MinMaxScaler [MRG] NaN handling MinMaxScaler Apr 21, 2018

Notes
-----

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Remove this empty line


- Updated :class: `MinMaxScaler` to pass through NaN values. :issue: `10404`
by :user: `Lucija Gregov <LucijaGregov>`

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Remove this empty line

'RandomForestRegressor', 'Ridge', 'RidgeCV']

ALLOW_NAN = ['QuantileTransformer', 'Imputer', 'SimpleImputer', 'MICEImputer']
ALLOW_NAN = ['Imputer', 'SimpleImputer', 'MICEImputer', 'MinMaxScaler', 'QuantileTransformer', 'Imputer', 'SimpleImputer', 'MICEImputer']
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There some repetition in this line.

other features in a round-robin fashion. :issue:`8478` by
:user:`Sergey Feldman <sergeyf>`.

- Updated :class: `MinMaxScaler` to pass through NaN values. :issue: `10404`
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no space after :issue:

:user:`Sergey Feldman <sergeyf>`.

- Updated :class: `MinMaxScaler` to pass through NaN values. :issue: `10404`
by :user: `Lucija Gregov <LucijaGregov>`
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no space after :user:

other features in a round-robin fashion. :issue:`8478` by
:user:`Sergey Feldman <sergeyf>`.

- Updated :class: `MinMaxScaler` to pass through NaN values. :issue: `10404`
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:class:`preprocessing.MinMaxScaler`

@glemaitre glemaitre changed the title [MRG] NaN handling MinMaxScaler [MRG+ 1] NaN handling MinMaxScaler Apr 21, 2018
@glemaitre glemaitre changed the title [MRG+ 1] NaN handling MinMaxScaler [MRG+1] NaN handling MinMaxScaler Apr 21, 2018
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ping @rth

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See minor comment below

LGTM otherwise.

:user:`Sergey Feldman <sergeyf>`.

- Updated :class:`preprocessing.MinMaxScaler` to pass through NaN values. :issue:`10404`
by :user:`Lucija Gregov <LucijaGregov>`
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Dot missing at the end.

@rth rth merged commit f1aedf6 into scikit-learn:master Apr 21, 2018
@jnothman jnothman mentioned this pull request Jun 16, 2018
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3 participants