Compute residuals and fitted values from functional demographic model or Lee-Carter model

After fitting a Lee-Carter model or functional demographic model, it is useful to inspect the residuals or plot the fitted values. These functions extract the relevant information from the fit object.

Usage

# S3 method for class 'fdm'
residuals(object, ...)

# S3 method for class 'fdm'
fitted(object, ...)

# S3 method for class 'lca'
fitted(object, ...)

# S3 method for class 'lca'
residuals(object, ...)

Arguments

object

Output from fdm or lca.

...

Other arguments.

Value

residuals.fdm and residuals.lca produce an object of class “fmres” containing the residuals from the model. fitted.fdm and fitted.lca produce an object of class “fts” containing the fitted values from the model.

See also

fdm, lca, bms

Author

Rob J Hyndman.

Examples

fit1 <- lca(fr.mort)
plot(residuals(fit1))

plot(fitted(fit1))