G matrix [General Sta­tis­tics]

posted by mittyri  – Russia, 2019-11-03 02:38 (2072 d 01:43 ago) – Posting: # 20748
Views: 6,464

Dear Patel,

❝ Is there any role of G-matrix in the calculation of LSM?


Even with one sample modified the model coefficients are changed. G matrix specifies variance-covariance matrix G and it is used to specify subject-specific effects.
With model changed covariance matrix is also changed, thus, you see the difference. Since MIXED statement uses some algos to achieve convergence, some changes in points could be crucial even if they are insignificant for reviewer.

Kind regards,
Mittyri

Complete thread:

UA Flag
Activity
 Admin contact
23,427 posts in 4,929 threads, 1,675 registered users;
24 visitors (0 registered, 24 guests [including 11 identified bots]).
Forum time: 05:22 CEST (Europe/Vienna)

Many people tend to look at programming styles and languages like religions:
if you belong to one, you cannot belong to others.
But this analogy is another fallacy.    Niklaus Wirth

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5