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st: Why do i get a failure all the time with this message?


From   jebeling <ebeling1@earthlink.net>
To   statalist@hsphsun2.harvard.edu
Subject   st: Why do i get a failure all the time with this message?
Date   Fri, 27 Aug 2004 10:16:30 -0700

I"ve tried to send this to you several times. I get an error message
every time I try, but here is what I wanted to send.


I'm confused by something in svymean and repcat.

Here is what I've done:

I've created some repcat categories using a variable I've created from
the joint cell frequencies on a crosstabulation I've been using, and I
want to use the ci's for each of the joint frequencies. So I did the
following:

. tab cells

    cells |      Freq.     Percent        Cum.
------------+-----------------------------------
        1 |         47       22.60       22.60
        2 |         51       24.52       47.12
        3 |         49       23.56       70.67
        4 |         61       29.33      100.00
------------+-----------------------------------
    Total |        208      100.00


. tab cells, gen(repcell)

     cells |      Freq.     Percent        Cum.
------------+-----------------------------------
         1 |         47       22.60       22.60
         2 |         51       24.52       47.12
         3 |         49       23.56       70.67
         4 |         61       29.33      100.00
------------+-----------------------------------
     Total |        208      100.00


. ci repcell1

  Variable |        Obs        Mean    Std. Err.       [95% Conf. Interval]
-------------+---------------------------------------------------------------

  repcell1 |        208    .2259615    .0290679        .1686545    .2832686

. ci repcell2

  Variable |        Obs        Mean    Std. Err.       [95% Conf. Interval]
-------------+---------------------------------------------------------------

  repcell2 |        208    .2451923     .029901        .1862427    .3041419

. ci repcell3

  Variable |        Obs        Mean    Std. Err.       [95% Conf. Interval]
-------------+---------------------------------------------------------------

  repcell3 |        208    .2355769     .029495        .1774279     .293726

. ci repcell4

  Variable |        Obs        Mean    Std. Err.       [95% Conf. Interval]
-------------+---------------------------------------------------------------

  repcell4 |        208    .2932692    .0316428        .2308857    .3556527


.
Now shouldn't the samples be 47, 51, 49, and 61 for each of the
confidence intervals I've created ci's for?   I used the joint
probabilities found in cells, which is derived from a crosstabulation
for the repcell categories. If anyone can clear me up on this I would
appreciate it.

jon ebeling









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