Some comments [Software]

posted by yjlee168 Homepage – Kaohsiung, Taiwan, 2014-10-09 14:18 (3910 d 03:59 ago) – Posting: # 13677
Views: 39,191

Dear Elmaestro,

Exactly. No starting value can be set up with either PROC MIXED of SAS or lme() from package nlme of R. I still have no idea about which parameter is going to be optimized with both software.

❝ 1. Just read the documentation for the Proc Mixed settings; looks to me like it isn't possible at all to control starter values for the optimiser? That would be rather silly, if you ask me.[...]



Silly? maybe. Probably it is not possible to do that or is not necessary to do that. Otherwise, it should not be that way.

Need to sneak into and have a look at the source codes of package nlme. I did that before, but still with no luck to figure out yet. Even though we can find out, there is still nothing we can do. nlme is a very big and complicated package.

All the best,
-- Yung-jin Lee
bear v2.9.2:- created by Hsin-ya Lee & Yung-jin Lee
Kaohsiung, Taiwan https://www.pkpd168.com/bear
Download link (updated) -> here

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