Change/Re-endogenize a variable in FRBUS

[primwallflow]

I'm running model simulations using the Federal Reserve's public FRBUS model (see here: http://www.federalreserve.gov/econresda ... ackage.htm)

The model includes several variables that estimate pre-set monetary policy rules. The user sets the monetary policy assumption through use of a flag.

What I'd like to do is modify the parameters of an existing rule (if you're familiar with FRBUS, it's the general rule, "rffgen"). What I am trying to do is first unlink the variable I'm trying to modify, then appending the new rule back to the model:

Code: Select all

{%varmod}.unlink rffgen
{%varmod}.append rffgen = rffe(-1) + 0.5*(picxfe(3)-2) - 0.5*(xgap2(3)-xgap2(-1))

However, when FRBUS tries to assign baseline tracking add factors, it reports an error ("The model contains errors and could not be compiled in 'DO_STDVER.ADDASSIGN @ALL"

One alternative would be to manually edit the equation and coefficient text files; however, that's quite clunky. I'd like to be able to dynamically use different rule specifications in different programs without having to go into the saved equations manually.

[EViews Gareth]

Without knowing anything about the frbus model, I'd say you want to do

Code: Select all

{%varmod}.drop rffgen
{%varmod}.append rffgen = rffe(-1) + 0.5*(picxfe(3)-2) - 0.5*(xgap2(3)-xgap2(-1))


[primwallflow]

Thanks for the reply. Eviews tells me "DROP is not a valid view for STDVER in 'DO_STVER.DROP RFFGEN"

I should mention I'm running Eviews 7.2

[EViews Gareth]

Ah. You can't do what you want in 7.2. You'll have to get 8, or do it the very complicated way you mentioned above.