Ignacio MauleĆ³n writes:
<quote>
Hi,
Does anyone know how to generate dynamically a variable, without
previously estimating a model?. What I am looking for is how to
replicate the dynamic genr command in TSP. And more generally, how to
define and simulate dynamic models.
Thanks.
</quote>
Answer: "genr" in gretl is automatically dynamic, when the
expression involves a lagged dependent variable. For example, the
following gives you a series that grows at 2 percent.
<hansl>
nulldata 50
setobs 1 1960
series y = 100
y = 1.02 * y(-1)
print y -o
</hansl>
You also have the filter() function for easy construction of
relatively complicated dynamics.
Allin Cottrell
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