Bioequivalence and Bioavailability Forum

Big bäng CV [Regulatives / Guidelines]

posted by ElMaestro  – Denmark, 2011-08-23 17:02 (5426 d 08:25 ago) – Posting: # 7295
Views: 8,769

Dear d_labes,

❝ Seems this does'nt make any sense.

How extremely odd that is. There certainly is a sequence component which isn't zero. Have you found a bug in SAS?

Further, I wonder:

The dataset contains, if I am not mistaking:
4 periods
2 sequences
77 subjects (there is no subject called 61)

I just wonder about another thing; in your original post that you link to above and this in this thread as well SAS says the model has 78 df's.
Apprently (from your linked post)
df periods = 2
df seqs =1
df subjs(seq) =75
why df periods =2 and not 3?

(note: I just tried to construct the original unreduced model matrix: 4 columns for periods, 2 for seqs, and 77 for subjs. Then qr'ed the matrix in R and got a rank of 81 (had expected 78 if SAS is correct); prolly I made a mistake somewhere )

Complete thread:

• EMA replicate surprise d_labes 2011-08-23 13:01 
  • EMA replicate surprise ElMaestro 2011-08-23 13:15
    • Big bäng CV d_labes 2011-08-23 13:58
      • Big bäng CVElMaestro 2011-08-23 15:02
        • Period DFs d_labes 2011-08-23 15:28
          • Period DFs Helmut 2011-08-23 15:36
          • Period DFs ElMaestro 2011-08-23 16:26
          • Period DFs ElMaestro 2011-08-23 16:58
            • Period DFs Helmut 2011-08-24 00:44
              • Lessons learned? d_labes 2011-08-24 11:24
                • Lessons learned? Helmut 2011-08-24 13:51
                • Lessons learned? ElMaestro 2011-08-28 21:34
            • Period DFs - EMA code literally in R d_labes 2011-08-24 10:47
              • Period DFs - EMA code literally in R ElMaestro 2011-08-24 13:04
                • call for expert’s opinions Helmut 2011-08-24 14:01
                  • call for expert’s opinions jdetlor 2011-11-01 03:05
                    • The finance sector ElMaestro 2011-11-02 09:48