Re: splines
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: splines

Dear Dave,

The cholesky factor is Lower triangle.

The resulting Z matrix is printed in the .res file.

If you are predicting spline curves, some new qualifiers (PVALS)
enable you to get an expanded design matrix: this
is then used in the new Predict directive.


> I am trying to get my own fitted splines using the solution vector. I note
> (manual p. 11) that the curvature vector is transformed by a Cholesky factor 
> the G matrix. Is this factor lower or upper triangular?
>   ___________________________________________________________________________

Arthur Gilmour PhD        
Principal Research Scientist (Biometrics)            fax: <61> 2 6391 3899
NSW Agriculture                                           <61> 2 6391 3922
Orange Agricultural Institute             telephone work: <61> 2 6391 3815
Forest Rd, ORANGE, 2800, AUSTRALIA                  home: <61> 2 6362 0046
                                                   Cargo: <61> 2 6364 3288
Until July 2001, I will be mainly building a house at Cargo.

ASREML is still free by anonymous ftp from pub/aar on
    or point your web browser at 

To join the asreml discussion list, send the message  

To send messages to the list,

Asreml list archive:

                        <> <> <> <> <> <> <>
"Blessed are the peacemakers,
        for they shall be called sons of God"   Jesus; Matthew 5:9



Asreml mailinglist archive: