plot.evmSim: Plots for evmSim objects

In texmex: Statistical Modelling of Extreme Values

Plots for evmSim objects

Description

This function produces diagnostic plots for the Markov chains used to simulate from the posterior distributions for the model parameters. If the chains have converged on the posterior distributions, the trace plots should look like "fat hairy caterpillars" and their cumulative means should converge rapidly. Moreover, the autocorrelation functions should converge quickly to zero.

Usage

## S3 method for class 'evmSim'
plot(
  x,
  which.plots = 1:3,
  chain = 1,
  density.adjust = 2,
  print.seed = FALSE,
  ...
)

Arguments

x	an object of class evmSim
which.plots	Which plots to produce. Option 1 gives kernel density estimates, 2 gives traces of the Markov chains with superimposed cumulative means, 3 gives autocorrelation functions.
chain	Which chain to use in the trace and ACF plots. Only used if more than one chain was run. Defaults to chain = 1. If you ran multiple chains, you'll want to look at them all.
density.adjust	In plot method for class evmSim. Passed into density. Controls the amount of smoothing of the kernel density estimate.
print.seed	Whether or not to print the seed used in the simulations, or to annotate the plots with it.
...	ignored

See Also

evm

density

texmex documentation built on June 22, 2024, 12:26 p.m.