[R] Error: could not find function

Uwe Ligges ligges at statistik.tu-dortmund.de
Sat Jan 23 18:07:01 CET 2010



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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