Bioequivalence and Bioavailability Forum • Variance components

Variance components – Proc mixed [Software]

posted by yjlee168 – Kaohsiung, Taiwan, 2014-02-03 21:43 (4512 d 11:39 ago) – Posting: # 12327
Views: 32,534

Dear Helmut,

Yes, I noticed that too.

❝ [...] but result in values smaller than CV_intra. Forget it.

❝ MSe MSs CVintra CVinter CVpooled

❝ Cmax 0.0178034 0.0236397 13.40% 5.41% 14.47%

❝ AUCt 0.0332878 0.0211136 18.40% NA 16.61%

❝ AUCinf 0.0311744 0.0188434 17.79% NA 15.91%

❝ [...] Not a problem for them, I guess. Doesn’t appear in their mandatory all fixed effects model (PHX) or Proc GLM. For the rest of the world (if running Proc MIXED) I would go with the UNBOUND option (see Detlew's post).

Sorry but I think it should be NOBOUND option with Proc MIXED.

—
All the best,
-- Yung-jin Lee
bear v2.9.6:- created by Hsin-ya Lee & Yung-jin Lee
Kaohsiung, Taiwan https://www.pkpd168.com/bear
Download link (updated) -> here

Complete thread:

How to calculate intersubject variability in PHX WinNonlin zan 2014-01-29 23:58
- Negative variance component Helmut 2014-01-30 01:16
  - Negative variance component zan 2014-01-30 18:11
  - Negative variance component zan 2014-01-31 00:16
    - Negative variance component ElMaestro 2014-01-31 08:20
    - Negative variance component yjlee168 2014-01-31 10:26
      - Example data set Helmut 2014-02-01 16:03
        
        Example data set yjlee168 2014-02-01 17:40
        
        PHX build 6.3.0.395 / 6.4.0.511 Helmut 2014-02-02 02:04
        
        PHX build 6.3.0.395 / 6.4.0.511 yjlee168 2014-02-02 07:54
    - Negative variance component ElMaestro 2014-02-01 16:31
      - Negative variance component yjlee168 2014-02-01 17:47
        
        Just thinking loud ElMaestro 2014-02-01 19:02
        
        All models are wrong… Helmut 2014-02-02 02:31
        
        another book for linear model yjlee168 2014-02-02 08:07
      - References Helmut 2014-02-02 02:19
        
        References ElMaestro 2014-02-02 09:56
    - Negative variance component – Chow/Liu d_labes 2014-02-03 09:02
      - Negative variance component – Chow/Liu ElMaestro 2014-02-03 10:22
        
        Variance components – Proc mixed d_labes 2014-02-03 11:58
        
        Variance components – Proc mixed ElMaestro 2014-02-03 12:58
        
        Variance components – Proc mixed 90% CIs d_labes 2014-02-03 13:16
        Variance components – Proc mixed Helmut 2014-02-03 14:14
        
        FDA code for non-replicate crossover? d_labes 2014-02-03 15:54
        
        Proc GLM rulez Helmut 2014-02-03 16:16
        
        Variance components – Proc mixedyjlee168 2014-02-03 20:43
        
        NOBOUND Helmut 2014-02-03 22:08
      - lm() or lme() for 2x2x2 study design? yjlee168 2014-02-03 20:22
        
        lm() or lme() for 2x2x2 study design? ElMaestro 2014-02-03 22:11
        
        lm() or lme() for 2x2x2 study design? yjlee168 2014-02-04 13:09
        
        bear for 2x2x2 study with negative variance components yjlee168 2014-02-05 19:12