The  set data style command changes the default plotting style
 for data plots.

 Syntax:
         set data style
         show data style
         set data style 

 In the first case,  set data style returns the possible style
 choices:   lines,  points,  linespoints,  dots,  steps,
  impulses,  errorbars,  boxes or  boxerrorbars.   show data style
 shows the current default plotting style for data.  set data style dots
 would actually  change the default plotting style.  See also  plot.