This attribute controls the appearance of an annotated
coordinate grid (drawn with the AST_GRID routine) by determining
whether matching leading fields should be removed from adjacent
numerical axis labels. It takes a separate value for each physical
axis of a Plot so that, for instance, the setting "Abbrev(2)=0"
specifies that matching leading fields should not be removed on
the second axis.
If the Abbrev value of a Plot is non-zero (the default), then
leading fields will be removed from adjacent axis labels if they