 Usage:  VaRqq(y,VaR{,VaR1,{,VaR2{,VaR3}}}{,opt})  
 
 Input:

  y                      n x d matrix, the returns of d time series. 
                         
  VaR                    (n-h) x 1 or (n-h) x 2 matrix, VaR forecasts. 
                         
  VaR1                   (n-h) x 1 or (n-h) x 2 matrix, VaR forecasts. 
                         
  VaR2                   (n-h) x 1 or (n-h) x 2 matrix, VaR forecasts. 
                         
  VaR3                   (n-h) x 1 or (n-h) x 2 matrix, VaR forecasts. 
                         
  opt                    optional, a list with optional input. The function 
                         "VaRopt" can be used to set up this parameter. 
                         The order of the list elements is not important. 
                         Parameters which are not given are replaced by 
                         defaults (see below). 
                         
  opt.h                  positive integer, window width. 
                         If not given, set to 250. 
                         
  opt.name               string, prefix for the output. If not given, "VaR" 
                         is used. 
                         
  opt.title              string, title for the output. If not given, a default 
                         is set. 
                         
  opt.color              string vector, colors for different VaR 
                         functions. Possible values are the color 
                         strings from setmask. The default is "black". 
                         
 Output:

  VaRqqplot              or opt.name+"qqplot", 
                         display, containing portfolio data and VaR 
                         forecasts. 
                         
--------------------------------------------------------------
(C) MD*TECH Method and Data Technologies, 17.8.2000
