## Methods for Function plot

### Description

Methods for function plot to produce different diagonostic plots for an object of class "MultiChainLadder".

### Usage


## S4 method for signature 'MultiChainLadder,missing'
plot(x, y, which.plot=1:4,
which.triangle=NULL,
main=NULL,
portfolio=NULL,
lowess=TRUE,
legend.cex=0.75,...)


### Arguments

 x An object of class "MultiChainLadder". y "missing" which.plot This specifies which type of plot is desired. Its range is 1:5, but defaults to 1:4. "1" is the barplot of observed losses and predicted IBNR stacked and MSE predictions as error bars; "2" is a trajectory plot of the development pattern; "3" is the residual plot of standardized residuals against the fitted values; "4" is the Normal-QQ plot of the standardized residuals. "5" is the "xyplot" of development with confidence intervals for each accident year. Note that "3" and "4" are not available for portfolio. which.triangle This specifies which triangles are to be plotted. Default value is NULL, where all triangles plus the portfolio result will be plotted. main It should be a list of titles for each plot. If not supplied, use default titles. portfolio It specifies which triangles are to be summed as the portfolio, to be passed on to summary. lowess Logical. If TRUE, smoothing lines will be added on residual plots. legend.cex plotting parameter to be passes on to cex in legend if which.plot=1. ... optional graphical arguments.

See also MultiChainLadder

### Examples

## Not run:
data(liab)

# generate diagonostic plots
par(mfcol=(c(3,2)))
plot(fit.liab,which.plot=1:2)

par(mfrow=(c(2,2)))
plot(fit.liab,which.plot=3:4)

plot(fit.liab,which.triangle=1,which.plot=5)
graphics.off()

## End(Not run)