V = instrument(V,Def)
V = instrument(V,Name,Expr)
V = instrument(V,Name,Vec)
V = instrument(V)
V
[ VAR ] - VAR object to which forecast instruments will be added.
Def
[ char | cellstr ] - Definition of the new forecast conditioning instrument.
Name
[ char ] - Name of the new forecast conditiong instrument.
Expr
[ char ] - Expression defining the new forecast conditiong instrument.
Vec
[ numeric ] - Vector of coeffients to combine the VAR variables to create the new forecast conditioning instrument.