Re: [Gretl-devel] bug with missings, dummies (and panel?)
On Wed, 14 Apr 2010, Talha Yalta wrote:
Sorry for joining late. I think gretl handles missing values
rather well. I am saying this because I have applied the so
called Wilkinson Tests to gretl, which assesses the handling of
missing values among other basic statistical functionality. (The
test results are available here:
http://ideas.repec.org/h/ehu/ehucha/01-16.html )
Suppose we have a series called MISS consisting of missing
values series NEW =MISS+1 returns all missing values because we
cannot know what happens if 1 is added to a missing (unknown)
number. series NEW=MISS*0 on the other hand returns zeroes
because we know (as Allin mentioned) the result here.
Thanks, Talha. It's nice to get third-party confirmation (via
Wilkinson) that gretl is doing the right thing with 0*missing,
even if we're the only econometrics program to do so (though I
doubt that is the case).
Allin