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