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st: problems with sort or merge

From   "Dimitriy V. Masterov" <[email protected]>
To   [email protected]
Subject   st: problems with sort or merge
Date   Wed, 9 Apr 2003 18:41:28 -0500 (CDT)

Dear Statalist,

I am having problem merging two files.  There in a note in [R] sort that
says that Stata sometimes decides that a dataset in not sorted when in
fact it is. Perhaps this is an instance of that.

The program I use is this:
# delimit;
set more off;
set trace on;

use C:\GED\temp1.dta;
sort cell1 newvar;
save C:\GED\temp1.dta, replace;

use C:\GED\missing_data1.dta, clear;
sort cell1 newvar;

merge cell1 newvar using C:\GED\temp1.dta;

However, I get the following error message:

. merge cell1 newvar using C:\GED\temp1.dta;
using data not sorted

When I open any of the two datasets, and describe the variables, both
appear to be sorted by cell1 newvar. Thus I am not sure what I am doing

Thank you in advance for your help.

Dimitriy V. Masterov

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