Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Looping with merge
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Looping with merge
Date
Mon, 13 May 2013 15:49:40 +0100
It's one loop, not two.
local files zip_pov p15_zip p37_zip
local vars povrate permcf perbachelor
forval i = 1/3 {
local f : word `i' of `files'
local v : word `i' of `vars'
merge m:1 zip_num using `f', keepusing(`v')
drop if _merge==2
drop _merge
}
OR
forval i = 1/3 {
local f : word `i' of zip_pov p15_zip p37_zip
local v : word `i' of povrate permcf perbachelor
merge m:1 zip_num using `f', keepusing(`v')
drop if _merge==2
drop _merge
}
Nick
[email protected]
On 13 May 2013 15:42, Adam Guerrero <[email protected]> wrote:
> Hello All,
>
> I am trying to write a loop for the following lines of code
>
> merge m:1 zip_num using zip_pov.dta, keepusing(povrate)
> drop if _merge==2
> drop _merge
> merge m:1 zip_num using p15_zip.dta, keepusing(permcf)
> drop if _merge==2
> drop _merge
> merge m:1 zip_num using p37_zip.dta, keepusing(perbachelor)
> drop if _merge==2
> drop _merge
>
> This is what, but has not been working
>
> foreach file in zip_pov.dta p15_zip.dta p37_zip.dta {
> foreach var of varlist "povrate" "permcf" "perbachelor" {
> merge m:1 zip_num using `file', keepusing(`var')
> drop if _merge==2
> drop _merge
> }
> }
>
*
* 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/