Bioequivalence and Bioavailability Forum

Question about computing 90% CI w data from 2 separate studies [General Statistics]

posted by jag009 – NJ, 2024-10-14 17:45 (269 d 16:05 ago) – Posting: # 24230
Views: 3,416

Hi BEQool,

>❝ I doubt that your model even gives you anything? Do you get any results?

Oh, I got a bunch of non-estimables because there were not enough degrees of freedom left. Obviously, I had more terms in the model than degrees of freedom. I think I got only the LSMeans of the 2 treatments, but nothing else could be estimated.

Thanks again for your feedback. I am going to try the following codes later today. What do you think?

PROC MIXED data=BEdata;

CLASSES SUBJECT TRT;

MODEL logval = TRT/ DDFM=SATTERTH;

RANDOM TRT/TYPE=FA0(2) SUB=SUBJECT G;

REPEATED/GRP=TRT SUB=SUBJECT;

ESTIMATE 'T vs. R' TRT 1 -1/CL ALPHA=0.1;

lsmeans TRT/ cl alpha=0.1; * <-- for parallel design studies, alpha=0.1;

ods output lsmeans=lsmeans;         * Least Squares means Output;

ods output covparms=covparms;       * Covariance output;

ods output estimates=ests;          * Estimate of differences between treatments;

Thx
J

Complete thread:

Question about computing 90% CI w data from 2 separate studies jag009 2024-10-14 01:44 [General Statistics]
- Question about computing 90% CI w data from 2 separate studies dshah 2024-10-14 08:38
  - Question about computing 90% CI w data from 2 separate studies jag009 2024-10-14 15:40
- Question about computing 90% CI w data from 2 separate studies BEQool 2024-10-14 11:37
  - Question about computing 90% CI w data from 2 separate studiesjag009 2024-10-14 15:45
    - Question about computing 90% CI w data from 2 separate studies BEQool 2024-10-18 12:03
  - Question about computing 90% CI w data from 2 separate studies dshah 2024-10-15 06:11

Question about computing 90% CI w data from 2 separate studies [General Sta­tis­tics]

Complete thread:

Question about computing 90% CI w data from 2 separate studies [General Statistics]