Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Obtaining details about -merge, update-


From   Phil Clayton <[email protected]>
To   "[email protected]" <[email protected]>
Subject   Re: st: Obtaining details about -merge, update-
Date   Sat, 19 Oct 2013 09:29:18 +1100

Perhaps I don't understand but isn't this what the _merge variable tells you?

Phil

On 19/10/2013, at 7:09, Joe Canner <[email protected]> wrote:

> Dear Colleagues,
> 
> Is there a relatively simple way to find out exactly what happened in the course of a -merge, update- command?  In other words: I have two datasets with a number of overlapping variables and I want to find out how often, for each variable, a missing observation in the master was updated with a non-missing observation in the using dataset.  Likewise, how often were observations in the master no updated because of a non-missing conflict.  Basically, this would be similar to the current merge results table, but on a variable-by-variable basis rather than based on the dataset as a whole.
> 
> Of course, this same functionality would be useful for -merge, replace-, although that is not my present concern.
> 
> If the answer is "no", is this something that people would be interested in?
> 
> Regards,
> Joe Canner
> Johns Hopkins University School of Medicine
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/faqs/resources/statalist-faq/
> *   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index