The spARCH class is a class generated by the estimation functions qml.spARCH or qml.SARspARCH comprising the results of the quasi-maximum-likelihood estimation.
plot(spARCH_object)plot.spARCH - Descriptive plots for residuals of a fitted spatial ARCH model
summary(spARCH_object)summary.spARCH - The function returns a summary of the model fit of a spatial ARCH model
fitted(spARCH_object)fitted.spARCH - The function extracts the fitted values of a spatial ARCH model.