[Gnuplot-info] set macros command

[Nick M. <mm...@em...>]

Hi,
I would like to use the "substitution of string variables as macros"  
option, but when I type the command "set macros", gnuplot returns the  
following error.

gnuplot> set macros
              ^
          valid set options:  [] = choose one, {} means optional

         'angles', 'arrow', 'autoscale', 'bars', 'border', 'boxwidth',
         'clabel', 'clip', 'cntrparam', 'colorbox', 'contour',  
'decimalsign',
         'dgrid3d', 'dummy', 'encoding', 'fit', 'format', 'grid',
         'hidden3d', 'historysize', 'isosamples', 'key', 'label',  
'locale',
         'logscale', '[blrt]margin', 'mapping', 'mouse', 'multiplot',
         'offsets', 'origin', 'output', 'palette', 'parametric', 'pm3d',
         'pointsize', 'polar', 'print', '[rtuv]range', 'samples',  
'size',
         'style', 'surface', 'terminal', tics', 'ticscale', 'ticslevel',
         'timestamp', 'timefmt', 'title', 'view', '[xyz]{2}data',
         '[xyz]{2}label', '[xyz]{2}range', '{no}{m}[xyz]{2}tics',
         '[xyz]{2}[md]tics', '{[xyz]{2}}zeroaxis', 'zero'

Thanks.
Nick