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Re: st: issue with forvalues/foreach


From   Jeph Herrin <stata@spandrel.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: issue with forvalues/foreach
Date   Fri, 14 Dec 2012 16:17:31 -0500

Have you tried using forward "/" instead of backwards "\"?

On 12/14/2012 9:44 AM, Rubil Ivica wrote:
Rebecca,
I tried -cd- and it doesn't work. Stata returns the same error message:

file F:\project\data`i'.dta not found
r(601);




--
Ivica Rubil
Ekonomski institut || The Institute of Economics, Zagreb
Trg J. F. Kennedyja 7, 10 000 Zagreb, Croatia
tel. +385-1-2362-269 || fax. +385-1-2335-165
irubil@eizg.hr || www.eizg.hr


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Rebecca Pope
Sent: 14. prosinac 2012 15:24
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: issue with forvalues/foreach

Just the loop should be sufficient. Long code is better than no code
when trying to answer a question.

Did you try -cd-?

Rebecca




On Fri, Dec 14, 2012 at 7:27 AM, Rubil Ivica <irubil@eizg.hr> wrote:
I didn't send the actual code because it is long.
The same problem appears whenever I have a path within the -forvalues-
or -foreach- loop.
The files are certainly in the folders that I am referring to in
paths.




--
Ivica Rubil
Ekonomski institut || The Institute of Economics, Zagreb
Trg J. F. Kennedyja 7, 10 000 Zagreb, Croatia
tel. +385-1-2362-269 || fax. +385-1-2335-165
irubil@eizg.hr || www.eizg.hr

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Rebecca
Pope
Sent: 13. prosinac 2012 17:52
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: issue with forvalues/foreach

Try this, since it looks like your files are all in the same
directory:
cd "F:\project\data\"
forval i=1/30 {
    use `"dataset_`i'.dta"', clear
    compress var1 var2
    save `"dataset_`i'.dta"', replace
}

Note on your -foreach- loop, you tell Stata that "country" is the
macro. Therefore, your code should say:
foreach country in croatia albania {
    use "F:\project\data\dataset_`country'.dta", clear
    compress var1 var2
    save "F:\project\data\dataset_`country'.dta", replace
}

I also changed the colon in the save to an underscore, since I assume
that is what you meant.

If that doesn't work, please post the code you are really submitting.
Perhaps there is something particular to it that isn't captured by
your example.

Best,
Rebecca


On Thu, Dec 13, 2012 at 10:36 AM, Rubil Ivica <irubil@eizg.hr> wrote:
William, what your suggested does not work either, even after
sustituting "/" for "\".





--
Ivica Rubil
Ekonomski institut || The Institute of Economics, Zagreb
Trg J. F. Kennedyja 7, 10 000 Zagreb, Croatia
tel. +385-1-2362-269 || fax. +385-1-2335-165
irubil@eizg.hr || www.eizg.hr


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of William
Buchanan
Sent: 13. prosinac 2012 17:28
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: issue with forvalues/foreach

Hi Ivica,

Try:

forv i = 1/30 {
         use `"F:/project/data/dataset_`i'"', clear
         compress var1 var2
         save `"F:/project/data/dataset_`i'b"', replace
         clear
}

It's probably a good idea not to permanently modify your data files
(so
adding "b" to the end of the filename should make it easier to
distinguish the two).  Also notice the use of "/" instead of "\" in
the
file path.  Using the "/" character will work on all platforms, and
avoids some of the problems that you faced.

HTH,
Billy


On Dec 13, 2012, at 8:21 AM, Rubil Ivica wrote:

Dear Statalisters:

When I to run the following (two artificial examples just to
illustrate
the issue)

forvalues i = 1(1)30 {
       use "F:\project\data\dataset_`i'.dta", clear
       compress var1 var2
       save "F:\project\data\dataset_`i'.dta", replace
       clear
}

or for instance

foreach country in croatia albania {
       use "F:\project\data\dataset_`i'.dta", clear
       compress var1 var2
       save "F:\project\data\dataset:`i'.dta", replace
       clear
}

Stata returns

file F:\project\data`i'.dta not found

It seems strange to me that Stata "forgets" the exactly specified
path:
"F:\project\data\dataset_`i'.dta" in the first example
and
"F:\project\data\dataset_`i'.dta" in the second example.




--
Ivica Rubil
Ekonomski institut || The Institute of Economics, Zagreb
Trg J. F. Kennedyja 7, 10 000 Zagreb, Croatia
tel. +385-1-2362-269 || fax. +385-1-2335-165
irubil@eizg.hr || www.eizg.hr


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