| 
	    pladv
	  ( | page ); | 
      Advances to the next subpage if
      sub=0pladv(0)page>0pleop followed by plbop to first advance the page.  This routine
      is called automatically (with
      page=0plenv, but if
      plenv is not used, pladv must be called after initializing PLplot
      but before defining the viewport.
    
page
	  (PLINTSpecifies the subpage number (starting from 1 in the top left corner and increasing along the rows) to which to advance. Set to zero to advance to the next subpage (or to the next page if subpages are not being used).
      Redacted form: pladv(page)
    
This function is used in examples 1, 2, 4, 6-12, 14-18, 20, 21, 23-27, 29, and 31.