PowerTOST [Power / Sample Size]
Dear D. Labes,
First, I want to say thanks for the great package PowerTOST!
I saw that you added some new features, in particular the df2 degrees of freedom. The latter brings me to my second point. In your excerpt (or the manual) you wrote "The df2 are also more appropriate if the planning of sample size is done based on CV’s originating from real mixed model analysis (via Proc MIXED in SAS or lme() in R)". Why is that? Is there a reference where this is mentioned (haven't seen it explicitly in Senn's "Cross-over Trials in Clinical Research")?
Thank you!
Best regards,
Ben
PS: Of course, everyone else can comment on this as well
PPS: Why don't you include balanced incomplete block designs (e.g. the 3x4x3 design mentioned in Chow and Liu's 'Design and Analysis of Bioavailability and Bioequivalence Studies') into PowerTOST?
Edit: Moved to this thread. [Helmut]
First, I want to say thanks for the great package PowerTOST!
I saw that you added some new features, in particular the df2 degrees of freedom. The latter brings me to my second point. In your excerpt (or the manual) you wrote "The df2 are also more appropriate if the planning of sample size is done based on CV’s originating from real mixed model analysis (via Proc MIXED in SAS or lme() in R)". Why is that? Is there a reference where this is mentioned (haven't seen it explicitly in Senn's "Cross-over Trials in Clinical Research")?
Thank you!
Best regards,
Ben
PS: Of course, everyone else can comment on this as well
PPS: Why don't you include balanced incomplete block designs (e.g. the 3x4x3 design mentioned in Chow and Liu's 'Design and Analysis of Bioavailability and Bioequivalence Studies') into PowerTOST?
Edit: Moved to this thread. [Helmut]
Complete thread:
- Power for unbalanced cross-over d_labes 2011-01-14 15:21 [Power / Sample Size]
- Great post! Helmut 2011-01-14 16:16
- Santa is coming d_labes 2011-12-22 09:30
- PowerTOSTBen 2012-01-02 17:39
- BIBDs Helmut 2012-01-02 17:53
- Uuups d_labes 2012-01-17 11:49
- the \tests subdirectory in a R-package yjlee168 2013-06-11 23:03
- To demo() or not d_labes 2013-06-14 13:28
- demo() is not demo yjlee168 2013-06-15 22:04
- To demo() or not d_labes 2013-06-14 13:28
- OT: issue of '\tests' subdir again yjlee168 2013-09-28 23:23
- the \tests subdirectory in a R-package yjlee168 2013-06-11 23:03
- Uuups d_labes 2012-01-17 11:49
- PowerTOST robust d_labes 2012-01-17 11:53
- BIBDs Helmut 2012-01-02 17:53
- PowerTOSTBen 2012-01-02 17:39
- Santa is coming d_labes 2011-12-22 09:30
- Great post! Helmut 2011-01-14 16:16
