 Usage:  (xyline)=steps4plot(xy, xymin, xmax)  

 

 Input:



  xy                     n x 2 matrix, coordinates of the jump points sorted 

                         by the first column 

                         

  xymin                  1 x 2 matrix, coordinates of the starting point. 

                         Default is the first jump point. Its x coordinate is 

                         set to that of the first jump if specified as larger. 

                         

  xmax                   scalar, x coordinate of the ending point Default is 

                         by adding 1% of the x range to the last jump point. 

                         Its x coordinate is set to that of the last first 

                         jump if specified as smaller. Y coordinate of the 

                         ending point is always that of the last jump point. 

                         

 Output:



  xyline                 4*(n+1) x 2 matrix, the points to be connected into 

                         step function. 

                         

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(C) MD*TECH Method and Data Technologies, 21.9.2000

