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lightgbm.plot_importance — LightGBM 4.6.0.99 documentation

lightgbm.plot_importance(booster, ax=None, height=0.2, xlim=None, ylim=None, title='Feature importance', xlabel='Feature importance', ylabel='Features', importance_type='auto', max_num_features=None, ignore_zero=True, figsize=None, dpi=None, grid=True, precision=3, **kwargs)[source]

Plot model’s feature importances.

Parameters:

• booster (Booster or LGBMModel) – Booster or LGBMModel instance which feature importance should be plotted.

• ax (matplotlib.axes.Axes or None, optional (default=None)) – Target axes instance. If None, new figure and axes will be created.

• height (float, optional (default=0.2)) – Bar height, passed to ax.barh().

• xlim (tuple of 2 elements or None, optional (default=None)) – Tuple passed to ax.xlim().

• ylim (tuple of 2 elements or None, optional (default=None)) – Tuple passed to ax.ylim().

• title (str or None, optional (default="Feature importance")) – Axes title. If None, title is disabled.

• xlabel (str or None, optional (default="Feature importance")) – X-axis title label. If None, title is disabled. @importance_type@ placeholder can be used, and it will be replaced with the value of importance_type parameter.

• ylabel (str or None, optional (default="Features")) – Y-axis title label. If None, title is disabled.

• importance_type (str, optional (default="auto")) – How the importance is calculated. If “auto”, if booster parameter is LGBMModel, booster.importance_type attribute is used; “split” otherwise. If “split”, result contains numbers of times the feature is used in a model. If “gain”, result contains total gains of splits which use the feature.

• max_num_features (int or None, optional (default=None)) – Max number of top features displayed on plot. If None or <1, all features will be displayed.

• ignore_zero (bool, optional (default=True)) – Whether to ignore features with zero importance.

• figsize (tuple of 2 elements or None, optional (default=None)) – Figure size.

• dpi (int or None, optional (default=None)) – Resolution of the figure.

• grid (bool, optional (default=True)) – Whether to add a grid for axes.

• precision (int or None, optional (default=3)) – Used to restrict the display of floating point values to a certain precision.

• **kwargs – Other parameters passed to ax.barh().

Returns:

ax – The plot with model’s feature importances.

Return type:

matplotlib.axes.Axes

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