etasFLP (version 2.2.2)

plot.profile.etasclass: plot method for profile.etasclass objects (profile likelihood of ETAS model)

Description

plot method for profile.etasclass objects (profile likelihood of ETAS model). Plots a smooth interpolation of the profile likelihood of a parameter of an ETAS model, as output from profile.etasclass.

Usage

# S3 method for profile.etasclass
plot(x,prob=c(0.90,0.95,0.99), use.main = TRUE,...)

Value

Plots a profile likelihood (in the scale -2log(LR)), and plots horizontal lines corresponding to the percentiles of a 1df chi-square variable of levels prob; the approximate confidence intervals corresponding to the levels prob are printed. Returns a list:

spline.profile

The spline interpolation of the profile likelihood.

conf

The approximate confidence intervals corresponding to the levels prob.

prob

The prob values used.

Arguments

x

An object of the class profile.etasclass.

prob

A vector of coverage probability for the asymptotic confidence interval computed using -2log(LR). Default value prob=c(0.90,0.95,0.99).

use.main

Logical. If use.main=TRUE then a title is printed in the profile plot

...

other arguments.

Author

Marcello Chiodi, Giada Adelfio

Details

Plots a spline interpolation of the profile likelihood for a parameter of the ETAS model for earthquake seismicity, computed with profile.etasclass;

the order of parametrs is: (mu, k0, c, p, a, gamma, d, q).

A plot method is defined for profile.etasclass objects. A number of grid points nprofile of 7 (the default) usually is enough to have a good interpolation of the profile likelihood.

See Also

eqcat, etasclass, profile.etasclass

Examples

if (FALSE) {
## see example in profile.etasclass
}