Nonparametric estimation methods.
Provides local polynomial regression (lpoly), kernel density estimation (kdensity),
and nonparametric regression (npregress).
LPolyResult
Results from local polynomial regression.
plot
plot(ax=None, scatter=True, ci=True, **kwargs)
Plot the local polynomial fit with optional scatter and CI.
KDensityResult
Results from kernel density estimation.
plot
plot(ax=None, hist=False, rug=False, **kwargs)
Plot the kernel density estimate.