Unless STOREBounds or WRITEBounds is specified,
embedded coordinates are written to the main coordinate set, and the
following symbols are defined:
$EMBEDDED
is a symbol of type string
that indicates whether the preceding embedding was successful
(string ``TRUE")
or unsuccessful (string ``FALSE").
$DGSCALE
is a symbol of type real
that holds the distance geometry scaling factor calculated
from the preceding embedding.
$METGAP
is a symbol of type
real that holds the average
difference between lower and upper bounds that
are involved in the metrization stage.
$NONMETGAP
is a symbol of type
real that holds the average
difference between lower and upper bounds after smoothing for
distances that are not involved in the metrization stage.