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st: Problem in appending data files.


From   Amir Kasaeian <amir_kasaeian@yahoo.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: Problem in appending data files.
Date   Tue, 6 Nov 2012 05:46:25 -0800 (PST)

Dear all,
Good day!
I have a problem in appending my data files.
I wrote a loop but there is little problem that I don't know how to resolve it.
Your help will be appreciated.
I use stata MP 11.
The problem is that I have 30 files in a folder named S0 through S1. I want to have a final file named for example "Total" including a new variable as an indicator for observations of each of 30 separate files.
I wrote my file as :

forvalues i= 0/29 {
append using "C:\Total85\S`i'.dta" , 
gen Province=`i'
save "C:\Total85\Total.dta", replace
} 


but the code stops at the first step alarming:


. do "C:\Users\AK\AppData\Local\Temp\STD00000000.tmp"

. forvalues i= 0/29 {
  2. append using "C:\Total85\S`i'.dta" , 
  3. gen Province=`i'
  4. save "C:\Total85\Total.dta", replace
  5. } 
file C:\Total85\Total.dta saved
Province already defined
r(110);

end of do-file

r(110);


The Total file just includes observation from the S0.
Would you please help me to modify my codes?
Bunch of thanks,
Amir

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