Displaying 3 results from an estimated 3 matches for "pointest".
2004 Nov 21
3
Help with ooplot(gplots) and error bars
Dear All
I am trying to graph a proportion and CI95% by a factor with ooplot (any
other better solution ?)
It works well until I try to add the confidence interval.
this is the error message and and a description of the data:
> dat1
PointEst
TT1 1 3.6
TT2 2 5.0
TT3 3 5.8
TT4 4 11.5
TT5 5 7.5
TT5 6 8.7
TT7 7 17.4
> dat2
Lower
TT1 1 1.0
TT2 2 2.2
TT3 3 2.7
TT4 4 6.7
TT5 5 3.9
TT5 6 4.6
TT7 7 11.5
> dat3
Upper
TT1 1 12.3
TT2 2 11.2
TT3...
2004 Jul 12
6
proportions confidence intervals
Dear R users
this may be a simple question - but i would appreciate any thoughts
does anyone know how you would get one lower and one upper confidence
interval for a set of data that consists of proportions. i.e. taking a
usual confidence interval for normal data would result in the lower
confidence interval being negative - which is not possible given the data
(which is constrained between
2006 Oct 19
5
binom.test
R-experts:
A quick question, please.
>From a lab exp, I got 12 positives out of 50.
To get 90% CI for this , I think binom.test might be the one to be used.
Is there a better way or function to calculate this?
> binom.test(x=12, n=50, p=12/50, conf.level = 0.90)
Exact binomial test
data: 12 and 50
number of successes = 12, number of trials = 50, p-value = 1
alternative