NAME variable;
ARCNAME variable;
VARNAME variable;
Each arc and nonarc variable that has data in the CONDATA=
data set must have a unique name.
This variable is identified in the ARCDATA=
data set. The NAME list variable must have character values (see the NAMECTRL=
option in the PROC NETFLOW
statement for more information). It is not necessary to have a NAME statement if the name of this SAS variable is _NAME_.