On May 26, 2009, at 4:37 , Frank E Harrell Jr wrote:
Manuel Morales wrote:
On Mon, 2009-05-25 at 06:22 -0500, Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 4:42 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 3:34 , Frank E Harrell Jr
Jarle Bjørgeengen wrote:
On May 26, 2009, at 4:37 , Frank E Harrell Jr wrote:
Manuel Morales wrote:
On Mon, 2009-05-25 at 06:22 -0500, Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 4:42 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at
On May 26, 2009, at 3:02 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 26, 2009, at 4:37 , Frank E Harrell Jr wrote:
Manuel Morales wrote:
On Mon, 2009-05-25 at 06:22 -0500, Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 4:42 , Frank E Harrell Jr
On May 24, 2009, at 4:42 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 3:34 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
Just for curiosity, any particular reason you chose standard
error , and not confidence interval as the default
Jarle Bjørgeengen wrote:
On May 24, 2009, at 4:42 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 3:34 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
Just for curiosity, any particular reason you chose standard error
, and not
Frank E Harrell Jr wrote:
spencerg wrote:
Dear Frank, et al.:
Frank E Harrell Jr wrote:
snip
Yes; I do see a normal distribution about once every 10 years.
To what do you attribute the nonnormality you see in most cases?
(1) Unmodeled components of variance that can generate
spencerg wrote:
Frank E Harrell Jr wrote:
spencerg wrote:
Dear Frank, et al.:
Frank E Harrell Jr wrote:
snip
Yes; I do see a normal distribution about once every 10 years.
To what do you attribute the nonnormality you see in most cases?
(1) Unmodeled components of variance
On Mon, 2009-05-25 at 06:22 -0500, Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 4:42 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 3:34 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
Just for
Manuel Morales wrote:
On Mon, 2009-05-25 at 06:22 -0500, Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 4:42 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
On May 24, 2009, at 3:34 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
You define your own function for the confidence intervals. The function
needs to return the two values representing the upper and lower CI
values. So:
qt.fun - function(x) qt(p=.975,df=length(x)-1)*sd(x)/sqrt(length(x))
my.ci - function(x) c(mean(x)-qt.fun(x), mean(x)+qt.fun(x))
Great,
thanks Manuel.
Just for curiosity, any particular reason you chose standard error ,
and not confidence interval as the default (the naming of the plotting
functions associates closer to the confidence interval ) error
indication .
- Jarle Bjørgeengen
On May 24, 2009, at
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
Just for curiosity, any particular reason you chose standard error , and
not confidence interval as the default (the naming of the plotting
functions associates closer to the confidence interval ) error
indication .
- Jarle Bjørgeengen
On May 24, 2009, at 3:34 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
Just for curiosity, any particular reason you chose standard
error , and not confidence interval as the default (the naming of
the plotting functions associates closer to the confidence
Jarle Bjørgeengen wrote:
On May 24, 2009, at 3:34 , Frank E Harrell Jr wrote:
Jarle Bjørgeengen wrote:
Great,
thanks Manuel.
Just for curiosity, any particular reason you chose standard error ,
and not confidence interval as the default (the naming of the
plotting functions associates
Dear Frank, et al.:
Frank E Harrell Jr wrote:
snip
Yes; I do see a normal distribution about once every 10 years.
To what do you attribute the nonnormality you see in most cases?
(1) Unmodeled components of variance that can generate errors
in interpretation if ignored,
spencerg wrote:
Dear Frank, et al.:
Frank E Harrell Jr wrote:
snip
Yes; I do see a normal distribution about once every 10 years.
To what do you attribute the nonnormality you see in most cases?
(1) Unmodeled components of variance that can generate errors
in interpretation
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