statsmodels.stats.outliers_influence.OLSInfluence.plot_index¶
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OLSInfluence.
plot_index
(y_var='cooks', threshold=None, title=None, ax=None, idx=None, **kwds)¶ index plot for influence attributes
Parameters: y_var : str
Name of attribute or shortcut for predefined attributes that will be plotted on the y-axis.
threshold : None or float
Threshold for adding annotation with observation labels. Observations for which the absolute value of the y_var is larger than the threshold will be annotated. Set to a negative number to label all observations or to a large number to have no annotation.
title : str
If provided, the title will replace the default “Index Plot” title.
ax : matplolib axis instance
The plot will be added to the ax if provided, otherwise a new figure is created.
idx : {None, int}
Some attributes require an additional index to select the y-var. In dfbetas this refers to the column indes.
kwds : optional keywords
Keywords will be used in the call to matplotlib scatter function.