 Usage:  opt = VaRopt(s0,v0{,s1,v1{,...{,opt0}}})  
 
 Input:

  s0,s1,...              string, name of the component to add. Allowed are 
                         "method" (method for VaR, one of "RMA" = default, 
                         "MAD", "EMA"), 
                         "h" (window width, default is 250), 
                         "lam" ("EMA" parameter, default is 1-0.96), 
                         "dist" (distribution, default is 0 for 
                         normal, a positive integer denotes 
                         the degrees of freedom in case of 
                         a t-distribution), 
                         "alpha" (significance level, default is 0.01), 
                         "w" (weights for assets), 
                         "bw" (bandwidth for method KDQ). 
                         For VaRplot, the parameters 
                         "name" (output name), 
                         "color" (color for VaR), 
                         "style" (style for VaR), 
                         "thick" (line thickness for VaR), 
                         "size" (point size for portfolio data), 
                         "title" (output title), 
                         "plot" (default is "all" for upper and 
                         lower VaR, use "low" for lower only), 
                         "exceed" (mark points that exceed VaR) 
                         are possible as well. 
                         
  v1,v2,...              object, value of the corresponding component to add. 
                         
  opt0                   optional, name of list where the component(s) 
                         should be added. 
                         
 Output:

  opt                    resulting list of options. 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
