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Re: st: Problem in appending data files.


From   Maarten Buis <maartenlbuis@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Problem in appending data files.
Date   Tue, 6 Nov 2012 15:09:04 +0100

replace province=`i'

should be

replace province=`i' if province == .

-- Maarten

On Tue, Nov 6, 2012 at 3:07 PM, Maarten Buis <maartenlbuis@gmail.com> wrote:
> use "C:\Total85\S0.dta"
> gen province = 0
> forvalues i= 1/29 {
> append using "C:\Total85\S`i'.dta" ,
> replace province=`i'
> }
> save "C:\Total85\Total.dta", replace
>
> -- Maarten
>
> On Tue, Nov 6, 2012 at 2:46 PM, Amir Kasaeian <amir_kasaeian@yahoo.com> wrote:
>> 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
>>
>> *
>> *   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/
>
>
>
> --
> ---------------------------------
> Maarten L. Buis
> WZB
> Reichpietschufer 50
> 10785 Berlin
> Germany
>
> http://www.maartenbuis.nl
> ---------------------------------



-- 
---------------------------------
Maarten L. Buis
WZB
Reichpietschufer 50
10785 Berlin
Germany

http://www.maartenbuis.nl
---------------------------------
*
*   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/


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