Re: OWN structures

From: <arthur.gilmour_at_DPI.NSW.GOV.AU>
Date: Wed, 21 Dec 2005 12:54:13 +1100

Dear Ian,

Best wishes for Christmas.

There seems to be a max size to the order of OWN structures. Does
anybody know what it is?

With the structure specified in sparse format, is it feasible to create
a diagonal OWN structure of order approx 10000?

As you anticipate, a dense form of the matrix would be too large
but a diagonal form of this size, indeed 100000 would be reasonable.

While it does not appear in the User Guide, the program does appear to
have a facility
of handling a DIAGonal OWN matrix.

The key is to write a 2 as a fourth field (column 20) of the header line
in the .gdg file
and then just to provide the diagonal elements rather than the whole

Let me know if it works.
There are other options in this fourth field but I'm unsure how well they
have been tested.

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Thanking God for His mercy through Jesus Christ.

Arthur Gilmour PhD
Principal Research Scientist (Biometrics)
NSW Department of Primary Industries
Orange Agricultural Institute, Forest Rd, ORANGE, 2800, AUSTRALIA

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Received on Tue Dec 21 2005 - 12:54:13 EST

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