statsmodels.graphics.regressionplots.plot_leverage_resid2¶

statsmodels.graphics.regressionplots.plot_leverage_resid2(results, alpha=0.05, ax=None, **kwargs)[source]¶

Plot leverage statistics vs. normalized residuals squared

Parameters:¶

resultsresults instance

A regression results instance

alphafloat

Specifies the cut-off for large-standardized residuals. Residuals are assumed to be distributed N(0, 1) with alpha=alpha.

axAxes

Matplotlib Axes instance

**kwargs

Additional parameters passed the plot command.

Returns:¶

Figure

A matplotlib figure instance.

Examples

Using a model built from the the state crime dataset, plot the leverage statistics vs. normalized residuals squared. Observations with Large-standardized Residuals will be labeled in the plot.

>>> import statsmodels.api as sm
>>> import matplotlib.pyplot as plt
>>> import statsmodels.formula.api as smf

>>> crime_data = sm.datasets.statecrime.load_pandas()
>>> results = smf.ols('murder ~ hs_grad + urban + poverty + single',
...                   data=crime_data.data).fit()
>>> sm.graphics.plot_leverage_resid2(results)
>>> plt.show()

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