VISINTAINER PAUL
>
> I was recently asked to compute confidence intervals for
> several proportions
> (more than 100). The data came in a spreadsheet in two
> columns: numerator
> (num) and denominator (den). I thought I could quickly run
> them using
> either ci or cii. However, it appears that ci doesn't read
> summary data and
> cii is not "byable". Despite my best efforts, I couldn't
> devise a program
> that would read more than the first line of the data.
>
> My very inelegant solution to the problem was this: I
> converted the two
> columns of data into a single row of data with 200 columns:
> (e.g., num1
> num2 . . . num100 den1 den2 . . . den100).
>
> Then I ran the following program:
>
> forvalues x=1/100 {
> cii den`x' num`x'
> }
>
> While it worked, it was really cumbersome converting the
> data. I suspect
> (hope) there is an easier way to do this. Any suggestions?
forval i = 1/100 {
local n = num[`i']
local d = den[`i']
cii `d' `n'
}
Nick
[email protected]
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/