On 23.01.2010 17:50, Remus Suciu wrote:
Hi.
I'm trying to create an Agresti-Coull confidence interval without using the
binom package.
Despite many trials, I keep getting the same problem- see below.
y=334
n=1160
alpha=.05
b=(y+.5*qnorm(1-alpha/2)**2)/(n+qnorm(1-alpha/2)**2)
b
[1] 0.288631
ac=b+qnorm(1-alpha/2)*sqrt(b(1-b)/(n+qnorm(1-alpha/2)**2))
Error: could not find function "b"
What am I missing?
The "*" between b and (1-b), I guess.
Uwe Ligges
What am I doing wrong?
Thank you,
Remus
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