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st: Obtaining details about -merge, update-

From   Joe Canner <>
To   "" <>
Subject   st: Obtaining details about -merge, update-
Date   Fri, 18 Oct 2013 20:09:30 +0000

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?

Joe Canner
Johns Hopkins University School of Medicine

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