Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: question on distribution of values


From   "Andrea King" <aking@health.nyc.gov>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: question on distribution of values
Date   Tue, 10 Oct 2006 11:18:01 -0400

Dear Statalist Users,

Here's an example of the data I'm working with:


Order#      Qt       Zip
1	    5       00011
1	    5       00012
1	    5       00013
1	    5       00014
2	    3       00021
2	    3       00023
3	    8       00031
3	    8       00035
3	    8       00036


Here are my problems:

1. The quantity of packages (qt) listed does not correspond directly to the zip code. For example, Order #1 requested 5 packages, to be distributed among each of four zip codes, or 1.25 packages per unique zip, not 5 packages per zip code.

2. I have yet to find the correct syntax that would allow me to create a variable that would show the distribution of Qt among the zip codes. I've played with egen, but can't get it to work.

So my question is:

how can I take one value of Qt (or if needed, an average of Qt), within each unique Order# and divide it by the number of unique zip codes by order#? Also, if it helps, the order number is listed each
time the zip code changes, so a count of order# would probably work, too, but I'd prefer to do it by Zip.

Thanks,

Andrea


*
*   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index