ProfileLadder (version 0.2.2)

plot.permutedReserve: Plotting the Output of the Permutation Bootstrap

Description

The function provides a graphical visualization of the results obtained from the permutation bootstrap (see Maciak, Mizera, and Pesta (2022) for further details) applied to the output of some parametric or nonparametric reserving technique. In particular, the classical parametric methods include GLM based reserving, the Mack Chain Ladder model, and the Tweedie model (all implemented in the package ChainLadder). Nonparametric (so-called functional-based) methods include three algorithms implemented in the ProfileLadder package (PARALLAX, REACT, and MACRAME)

Usage

# S3 method for permutedReserve
plot(x, ...)

Value

The function returns a layout for four plots. The first panel shows a simple barplot type visualization of the estimated reserve, the estimated ultimate, and the true reserve (if available). The second panel provides a histogram for (permuted) bootstrapped reserves with a nonparametric estimate of the corresponding density. The third panel provides a detailed inspection of the bootstrapped ultimates (with true ultimates if provided) and, finaly, the last panel shows the observed diagonal vs. simulated ones.

Arguments

x

an object of the class permutedReserve -- i.e., the output of the permuteReserve() function

...

other graphical parameters to plot

See Also

permuteReserve()

Examples

## reserve estimated by MACRAME and the corresponding visualization
x <- mcReserve(CameronMutual)
plot(permuteReserve(x, B = 100))