Outliers - yes, but how? [BE/BA News]
Dear D. Labes!
I borrowed it from a personal discussion page at Wikipedia.
Well, personal discussion pages of WP are blocked from being indexed by
. I have blocked some pages (i.e., the download section and the latest posts) from
as well. Requires two lines in the domain’s
… and adding
I used EMA’s crippled model (test removed),

I have chosen ±3×IQR following the convention (!) that values within 1.5-3×IQR are ‘mild’ outliers and outside 3×IQR are ‘severe’ outliers. I’m exploring full replicate data-sets right now – outliers almost in all of them. Don’t know whether residuals make any sense at all (see also this post: period ratios instead?). I would end up with different numbers of outliers, depending on the method of calculation of the IQR (see R-manual). Period ratios (second / first administration):
Type 3: SAS according to R-doc - 2 outliers (#46: 3.524, #45: 26.08)
Type 5: or is this SAS? - 2 outliers
Type 6: Minitab, SPSS, Phoenix/WinNonlin - 2 outliers
Type 7: default in S, R - 3 outliers (as above + #13: 3.349)
Don’t know what to do.
Suggestions?
Maybe Q&A is an abbreviation for Questions and Ambiguities.
❝ This quote, or is it your own poetry, …
I borrowed it from a personal discussion page at Wikipedia.
❝ … is really google resistant. First time that I noticed the Net is not omniscient!
Well, personal discussion pages of WP are blocked from being indexed by
![[image]](img/uploaded/image219.png)
![[image]](img/uploaded/image219.png)
robots.txt
…User-agent: *
Disallow: /foo/
… and adding
rel="nofollow"
to respective links within other pages (the same is done here; look at the HTML code).❝ ❝ … Did you have a look at box plots and/or QQ-plots of residuals? What about subjects 45 and 52 (studentized residuals outside ±1.96 and outside 3×IQR)?
❝
❝ Which residuals did you analyse? Which model? Please enlighten me.
I used EMA’s crippled model (test removed),
Sequence+Subject(Sequence)+Period
and threw away one period’s residuals (same values, but different in signs to the respective other one).❝ What do you think: which type of boxplot should we apply? Best for our sponsors would be a simple boxplot with whiskers up to minimum/maximum not showing any 'outlier' .

I have chosen ±3×IQR following the convention (!) that values within 1.5-3×IQR are ‘mild’ outliers and outside 3×IQR are ‘severe’ outliers. I’m exploring full replicate data-sets right now – outliers almost in all of them. Don’t know whether residuals make any sense at all (see also this post: period ratios instead?). I would end up with different numbers of outliers, depending on the method of calculation of the IQR (see R-manual). Period ratios (second / first administration):
Type 3: SAS according to R-doc - 2 outliers (#46: 3.524, #45: 26.08)
Type 5: or is this SAS? - 2 outliers
Type 6: Minitab, SPSS, Phoenix/WinNonlin - 2 outliers
Type 7: default in S, R - 3 outliers (as above + #13: 3.349)
CVWR Scaled AR width
Full data set: 47.0 71.23 - 140.40 69.17
#45, #52 excluded (residuals): 32.2 78.79 - 126.93 48.14
#45, #46 excluded (ratios): 35.3 77.08 - 129.73 52.65
Don’t know what to do.

Maybe Q&A is an abbreviation for Questions and Ambiguities.
—
Dif-tor heh smusma 🖖🏼 Довге життя Україна!![[image]](https://static.bebac.at/pics/Blue_and_yellow_ribbon_UA.png)
Helmut Schütz
![[image]](https://static.bebac.at/img/CC by.png)
The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
Dif-tor heh smusma 🖖🏼 Довге життя Україна!
![[image]](https://static.bebac.at/pics/Blue_and_yellow_ribbon_UA.png)
Helmut Schütz
![[image]](https://static.bebac.at/img/CC by.png)
The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
Complete thread:
- EMA BE-GL: Clarifications / Corrections? Helmut 2010-06-22 18:53 [BE/BA News]
- Good news!? d_labes 2010-06-23 10:09
- Good news!? Helmut 2010-06-23 10:11
- Update Helmut 2011-02-05 18:48
- Q&A published 14 March 2011 Helmut 2011-03-16 13:44
- Q&A published 14 March 2011 ElMaestro 2011-03-16 14:20
- Phoenix/WinNonlin 6.1.0.173 Helmut 2011-03-17 04:23
- ANOVA party prevails d_labes 2011-03-17 11:00
- THX! Helmut 2011-03-19 02:59
- Outlier d_labes 2011-03-24 11:55
- Outliers - yes, but how?Helmut 2011-03-24 15:09
- Questions and Ambiguities d_labes 2011-03-28 14:16
- Residuals and Outliers in Replicate Design Crossover Studies d_labes 2011-04-04 08:53
- Outliers - yes, but how?Helmut 2011-03-24 15:09
- Info requested ElMag 2011-03-24 12:45
- Confused as well... Helmut 2011-03-24 16:50
- Outlier d_labes 2011-03-24 11:55
- THX! Helmut 2011-03-19 02:59
- Q&A published 14 March 2011 Priyanka_S 2011-03-21 14:28
- SAS code: Warning d_labes 2011-03-21 16:08
- Copy & paste Helmut 2011-03-21 22:38
- Subtleties, flaws, questions d_labes 2011-03-22 09:24
- Subtleties, flaws, questions Helmut 2011-03-27 20:35
- Not estimable in the model The user 2017-03-14 10:16
- Not estimable in the model ElMaestro 2017-03-14 11:02
- Not estimable in the model The user 2017-03-14 12:13
- Not estimable in the model ElMaestro 2017-03-14 12:41
- Not estimable in the model The user 2017-03-14 12:13
- Not estimable in the model Helmut 2017-03-18 21:59
- Food not the same between groups Beholder 2021-11-10 14:35
- Food not the same between groups ElMaestro 2021-11-17 09:50
- Food not the same between groups Beholder 2021-11-10 14:35
- Not estimable in the model ElMaestro 2017-03-14 11:02
- Not estimable in the model The user 2017-03-14 10:16
- Subtleties, flaws, questions Helmut 2011-03-27 20:35
- Subtleties, flaws, questions d_labes 2011-03-22 09:24
- Copy & paste Helmut 2011-03-21 22:38
- SAS code: Warning d_labes 2011-03-21 16:08
- Q&A published 14 March 2011 Helmut 2011-03-16 13:44
- Update Helmut 2011-02-05 18:48
- Good news!? Helmut 2010-06-23 10:11
- Good news!? d_labes 2010-06-23 10:09