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RegisterLessons learned? [Regulatives / Guidelines]
Dear brothers-in-arms!
What does this all tell us? What lessons learned?
First I hope that the statisticians at EMA responsible for that paragraph of the Q&A read this thread. It must be a splashy slap in their face considering Helmut's quotation of "the spirit of EMA’s Q&A".
Second I come more and more to the conclusion that a decomposition of the subject effect into the terms sequence and subject nested within sequence is not really possible with those crippled datasets (reasons not really understood, but I'm only a bloody amateur and have no such deep understanding of concepts like rank of the model.matrix). The robust model without any peculiarities should therefore include period and subject effects only.
Do I err here?
Third the intra-individual variability (represented by the residual error) is fortunately not affected by all that muddle. And this is the only interesting number in this analysis. The rest is really "scheissegal" (best vulgar translation found: don't give a flying fuck
).
Also I personally have a deep horror to see df=0 or 'not estimable' in a model.
What does this all tell us? What lessons learned?
First I hope that the statisticians at EMA responsible for that paragraph of the Q&A read this thread. It must be a splashy slap in their face considering Helmut's quotation of "the spirit of EMA’s Q&A".
Second I come more and more to the conclusion that a decomposition of the subject effect into the terms sequence and subject nested within sequence is not really possible with those crippled datasets (reasons not really understood, but I'm only a bloody amateur and have no such deep understanding of concepts like rank of the model.matrix). The robust model without any peculiarities should therefore include period and subject effects only.
Do I err here?
Third the intra-individual variability (represented by the residual error) is fortunately not affected by all that muddle. And this is the only interesting number in this analysis. The rest is really "scheissegal" (best vulgar translation found: don't give a flying fuck
).Also I personally have a deep horror to see df=0 or 'not estimable' in a model.
—
Regards,
Detlew
Regards,
Detlew
Complete thread:
- EMA replicate surprise d_labes 2011-08-23 13:01
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- EMA replicate surprise ElMaestro 2011-08-23 13:15
- Big bäng CV d_labes 2011-08-23 13:58
- Big bäng CV ElMaestro 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
- Lessons learned?d_labes 2011-08-24 11:24
- 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
- call for expert’s opinions jdetlor 2011-11-01 03:05
- call for expert’s opinions Helmut 2011-08-24 14:01
- Period DFs - EMA code literally in R ElMaestro 2011-08-24 13:04
- Period DFs Helmut 2011-08-24 00:44
- Period DFs d_labes 2011-08-23 15:28
- Big bäng CV ElMaestro 2011-08-23 15:02
- Big bäng CV d_labes 2011-08-23 13:58
- EMA replicate surprise ElMaestro 2011-08-23 13:15
Ing. Helmut Schütz