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Re: st: Adding a suffix to variables in a local macro


From   "G. Anderson" <ga274@cam.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Adding a suffix to variables in a local macro
Date   09 Jun 2013 19:50:21 +0100

Works well- thanks a lot!


On Jun 9 2013, Nick Cox wrote:

You appear to have missed the -unab- route

unab my98 : *98
Nick
njcoxstata@gmail.com


On 9 June 2013 18:16, Nick Cox <njcoxstata@gmail.com> wrote:
You are correct, but there is a simple fix

local commod2 `commod2'98

A more systematic approach is

local commod2
foreach w of local commod {
             local commod2 `commod2' `w'98
}


Nick
njcoxstata@gmail.com


On 9 June 2013 18:12, G. Anderson <ga274@cam.ac.uk> wrote:
Thanks a lot Nick.

That seems to almost work, but leaves the last variable in the initial list commod unchanged:

So I get something like tea98 coffee98 sugar98 wheat for commod2. Have tried this with a few different variables and always seems to skip the last one.

Thanks,

Gareth

On Jun 9 2013, Nick Cox wrote:

local commod2 : subinstr local commod " " "98 ", all

local commod3 : subinstr local commod2 "98" "99", all

Such trickery in this kind of context is also documented at http://www.stata.com/support/faqs/data-management/problems-with-reshape/ -- not that I expect anyone apart from me to know or remember that.

Search for "unab" in that FAQ.

Nick
njcoxstata@gmail.com

On 9 June 2013 17:37, G. Anderson <ga274@cam.ac.uk> wrote:


I have a large list of variables, from which I have created a local
macro:

local commod tea coffee sugar wheat I also have variables in my data set, which refer to specific years, so I have variables tea98, coffee98, sugar98, wheat98 etc

I would like to create a local macro referring to each year, so:

local commod98 tea98 coffee98 sugar98 wheat98

local commod99 tea99 coffee99 sugar99 wheat 99

etc.

Is there a way to do this, referring to local commod and adding the the suffix "98" "99" etc?

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