[d:Bivariate plot]            [s:b][p:biplot][a:{< file of X Y points}]
[d:Filter graphics for output][s:f][p:plot][a:{terminal} {< file}]
[d:Graph points]              [s:g][p:graph][a:{options} {< file}]
[d:Leroy]                     [s:l][p:leroy][a:{file}]
[d:Interpolate smooth curve]  [s:i][p:spline][a:{options} {< file}]
