plot2plane: Draws a plane plot
plot2plane draws plots on a Cartesian 2-dimensional surface.
Positional coordinates are specified as x, y pairs,
e.g.:
plot2plane layer1=mark in1=cat.fits x1=RMAG y1=RMAG-BMAG
Content is added to the plot by specifying
one or more plot layers using the
layerN parameter.
The N part is a suffix applied to
all the parameters affecting a given layer;
any suffix (including the empty string) may be used.
Available layers for this plot type are:
mark,
size,
sizexy,
xyvector,
xyerror,
xyellipse,
xycorr,
link2,
mark2,
poly4,
mark4,
polygon,
area,
central,
lines,
marks,
handles,
yerrors,
xyerrors,
statline,
statmark,
arrayquantile,
line,
linearfit,
label,
arealabel,
contour,
grid,
fill,
quantile,
histogram,
kde,
knn,
densogram,
gaussian,
function.