The following code yields a weird error. I think I may be doing something silly. I am using WIN 8 64 bit with Gretl 1.9.12CVS 8/9/2013 (could be a bit old).

bundle bARG

       bARG["hrzn"] = 20

#Set forecast horzion

scalar intHRZ = inbundle(bARG, "hrzn") ? bARG["hrzn"] : 5*$pd

set horizon intHRZ

Here is the error:

'inthrz': not a scalar

Error executing script: halting

> set horizon intHRZ