R/uvpot-gen-plot.R

In POT: Generalized Pareto Distribution and Peaks Over Threshold

#############################################################################
#   Copyright (c) 2014 Mathieu Ribatet                                                                                                  
#                                                                                                                                                                        
#   This program is free software; you can redistribute it and/or modify                                               
#   it under the terms of the GNU General Public License as published by                                         
#   the Free Software Foundation; either version 2 of the License, or                                                   
#   (at your option) any later version.                                                                                                            
#                                                                                                                                                                         
#   This program is distributed in the hope that it will be useful,                                                             
#   but WITHOUT ANY WARRANTY; without even the implied warranty of                                          
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 
#   GNU General Public License for more details.                                                                                    
#                                                                                                                                                                         
#   You should have received a copy of the GNU General Public License                                           
#   along with this program; if not, write to the                                                                                           
#   Free Software Foundation, Inc.,                                                                                                              
#   59 Temple Place, Suite 330, Boston, MA 02111-1307, USA                                                             
#                                                                                                                                                                         
#############################################################################

## This file contains several functions to plot Peaks Over a Threshold.



plot.uvpot <- function(x, npy, main, which = 1:4,
                       ask = nb.fig < length(which) && 
                       dev.interactive(),ci = TRUE, ...){
  if(!inherits(x, "uvpot"))
    stop("Use only with 'uvpot' objects")
  
  if (!is.numeric(which) || any(which < 1) || any(which > 4)) 
        stop("`which' must be in 1:4")
    
  show <- rep(FALSE, 4)
  show[which] <- TRUE
  nb.fig <- prod(par("mfcol"))
  
  if (ask) {
    op <- par(ask = TRUE)
    on.exit(par(op))
  }
  if (show[1]) {
    pp.uvpot(x, ci = ci, main, xlim = c(0, 1), ylim = c(0, 1),
             ...)
  }
  if (show[2]) {
    qq.uvpot(x, ci = ci, main, ...)
  }
  if (show[3]) {
    dens.uvpot(x, main, ...)
  }
  if (show[4]) {
    retlev.uvpot(x, npy, main, ...)
  }
}