Bookmark and Share

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: loop until "0 real changes made"


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: loop until "0 real changes made"
Date   Mon, 29 Jul 2013 15:06:31 +0100

Plus the "+" if needed.
Nick
njcoxstata@gmail.com


On 29 July 2013 15:05, Nick Cox <njcoxstata@gmail.com> wrote:
> One answer is not to use regular expressions here at all. Use
> -subinstr()- with statements like
>
> replace `v' = subinstr(`v', "`=char(195)'`=char(135)'","C", .)
>
> Another answer is to set up a count of changes and stop when you hit zero.
>
> clonevar AD2 = AD
>
> foreach v of var AD {
>            replace AD2 = AD
>            <work with AD>
>            count if AD2 != AD
>            if r(N) == 0 continue, break
> }
>
> Nick
> njcoxstata@gmail.com
>
> On 29 July 2013 14:48, Haluk Vahaboglu <vahabo@hotmail.com> wrote:
>
>> I am using Stata 12.1 for Linux-64 bit and dealing with Turkish characters in string variables. I convert these Turkish characters (ı, ş, ü etc) to readable equivalents (i, s, u etc). Doing this with the code below:
>>
>> foreach v of var AD {
>>            replace `v'=regexr(`v', "`=char(195)'+`=char(135)'","C")
>>            replace `v'=regexr(`v', "`=char(196)'+`=char(176)'","I")
>>            replace `v'=regexr(`v', "`=char(195)'+`=char(167)'","c")
>>            replace `v'=regexr(`v', "`=char(195)'+`=char(182)'","o")
>>            replace `v'=regexr(`v', "`=char(196)'+`=char(177)'","i")
>>            replace `v'=regexr(`v', "`=char(196)'+`=char(158)'","G")
>>            replace `v'=regexr(`v', "`=char(196)'+`=char(159)'","g")
>>            replace `v'=regexr(`v', "`=char(195)'+`=char(156)'","U")
>>           replace `v'=regexr(`v', "`=char(195)'+`=char(188)'","u")
>>           replace `v'=regexr(`v', "`=char(197)'+`=char(158)'","S")
>>           replace `v'=regexr(`v', "`=char(195)'+`=char(150)'","O")
>>           replace `v'=regexr(`v', "`=char(197)'+`=char(159)'","s")
>> }
>>
>> However, this code cannot accomplish the conversion at the first time. Therefore, I have to do it 5 to 10 times to get a (0 real changes made) message.
>> My question is: can I make this loop run automatically until I get the (0 real changes made) message which indicates that all characters are converted.

*
*   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/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index