Re: LogL Converged, Parameter Not Converged

From: Arthur Gilmour <arthur.gilmour_at_CARGOVALE.COM.AU>
Date: Thu, 15 Oct 2009 10:48:15 +1100

Dear Subash,

After every iteration, ASReml rewrites the .rsv file.

If you use !CONTINUE and there is no .rsv file (the job has not been
previously run) then !CONTINUE is ignored because there is no point to

Now if the model is changed between runs, ASReml picks up the parameters
for the parts that are recognised as the same. Further more it
recognises some progressions so the values from as a CORUV structure
may be used it initialize a XFA1 structure.

Now if using PARTs, you may have run PART 1 but not part 2.
If the .rsv file from part 1 was say SK1.rsv,
you can copy SK1.rsv to SK2.rsv
so that an .rsv file exists for part 2 and CONTINUE will work the first
time you run part 2.

ASReml 3 tries to be a little smarter and do this for you via a new .ask
file which just keeps track of which part was run last. Then if you
run part 1, then part 2 with continue, ASReml will check for SK2.rsv
and since it is not there, identify SK1.rsv as being the .rsv file that
should be used.

The whole aim is to avoid the tedious and error prone process of
manually typing in revised initial values after running an initial job.

Best wishes.

On Wed, 2009-10-14 at 09:11 -0500, KRISHNAMURTHY, SUBASH [AG/1000]
> I am still trying to understand how this !CONTINUE works and I
> apologize, if in the process, I am asking the same questions over and
> over.
> It seems to me that for the qualifier !CONTINUE to work, the .rsv file
> must be sitting there. Does this mean that I have to run the program
> twice each time I see this message of Parameter Not Converged? If
> that is the case, is there a way to tell ASREML to do this
> automatically.
> Also, is it safe to use the outputs like the Least Squared Means
> (BLUPS), standared erros of the LSM (BLUPS) etc., with this warning
> message?

Best Wishes,
Arthur Gilmour
Adjunct Professor
School of Computing and Mathematics
Charles Sturt University
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Received on Fri Oct 15 2009 - 10:48:15 EST

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