 Usage:  {b,bse,bstan,bpval} = linregstep (x, y, colname{, opt})  
 
 Input:

  x                      n x p x d1 x ... x dn array 
                         
  y                      n x 1 x d1 x ... x dn array 
                         
  colname                string vector 
                         
  opt                    parameter vector 
                         
 Output:

  b                      p x 1 x d1 x ... x dn array 
                         
  bse                    p x 1 x d1 x ... x dn array 
                         
  bstan                  p x 1 x d1 x ... x dn array 
                         
  bpval                  p x 1 x d1 x ... x dn array 
                         
--------------------------------------------------------------
(C) MD*TECH Method and Data Technologies, 17.8.2000
