statsmodels.stats.outliers_influence.OLSInfluence.plot_index

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.