depictr.residual_diagnostics_plot

depictr.residual_diagnostics_plot(model, title=None)

Four-panel residual report for a fitted OLS or GLM.

Composes the four checks R draws from plot.lm into a 2x2 grid: residuals against fitted values, the scale-location plot, a normal quantile-quantile plot of the residuals, and residuals against leverage. Read together they cover the usual assumptions of a linear fit: the right functional form, constant variance, approximately normal residuals, and no single point dominating the fit.

Parameters:

• model (statsmodels results object) – A fitted OLS/GLM result, the kind returned by smf.ols(...).fit().

• title (str, optional) – An overall title for the composed figure.

Returns:

A 2x2 composition with .draw and .save.

Return type:

plotnine.composition.Compose

References

Fox, J., & Weisberg, S. (2019). An R companion to applied regression (3rd ed.). Sage.