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

  s0,s1,...              string, name of the component to add. Allowed are 
                         "code" (model code), 
                         "wx" (weights), 
                         "weights" (weights type), 
                         "off" (offset), 
                         "norepl" (no search for replications), 
                         "shf" (show iteration process), 
                         "miter" (maximal number of iterations), 
                         "cnv" (convergence criterion), 
                         "fscor" (Fisher scoring) 
                         "pow" (power) 
                         "nbk" (parameter k for negative binomial). 
                         For glmout, the parameters 
                         "nopic" (no picture), 
                         "name" (output name), 
                         "xvars" (variable names) 
                         "title" (output title) 
                         are possible as well. The model selection 
                         macros know also 
                         "shm" (show selection process), 
                         "fix" (keep variables fix) and 
                         "crit" (for AIC or BIC). 
                         See macros doglm, glmfit, glmest, glmout and glmselect, 
                         glmforward, glmbackward for the meaning of these 
                         components. 
                         
  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. 
                         
--------------------------------------------------------------
(C) MD*TECH Method and Data Technologies, 17.8.2000
