g = g_plot (g,...) - Plot a gnuplot_object
If g.values has a field "geometry" of the form, [width, heigth] or
"x, it will be used to set the geometry, in pixels of the
gnuplot window.
OPTIONS:
"geometry",geometry
"-wait" : Gnuplot does not exit immediately, which allows to manipulate the
plot with the mouse.
Any string ending in '.eps' causes postscript output. The plot is output to
that file, and the file is viewed using ggv.
"-display", yesno : View eps file or not (senseless unless an eps was saved)
"-color", yesno : In color or monochrome (for eps and fig)
All optional arguments other than the options above will be passed to
_g_instantiate before plotting.
TODO: Have a better choice of postscript viewers (e.g. gv ...)
Do the same for .pdf, .fig and .png arguments.
See also: g_new,...
