Hm... sounds like a homework problem to me...
Maybe start by figuring out how to do it without R -
what's the approach, and how would you calculate it?
Then search R help for the possible key words you
came up with.
Sarah
On 4/8/07, Jochen.F [EMAIL PROTECTED] wrote:
Hi...
I have to use R to find out the 90% confidence-interval for the sensitivity
and specificity of the following diagnostic test:
A particular diagnostic test for multiple sclerosis was conducted on 20 MS
patients and 20 healthy subjects, 6 MS patients were classified as healthy
and 8 healthy subjects were classified as suffering from the MS.
Furthermore, I need to find the number of MS patients required for a
sensitivity of 1%...
Is there a simple R-command which can do that for me?
I am completely new to R...
Help please!
Jochen
--
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Sarah Goslee
http://www.functionaldiversity.org
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