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


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Adding a suffix to variables in a local macro
Date   Sun, 9 Jun 2013 18:16:11 +0100

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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