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: replacing task in a loop
From
Daniel Marcelino <[email protected]>
To
[email protected]
Subject
Re: st: replacing task in a loop
Date
Fri, 29 Jul 2011 09:10:36 -0400
Thanks Phil,
Daniel
On Fri, Jul 29, 2011 at 1:58 AM, Phil Clayton
<[email protected]> wrote:
> Why not just use -recode-?
>
> eg:
> recode `v' (1=0) (2=0.25) (9=0.5) (3=0.75) (4=1)
>
> From the version 11.2 manual entry for -recode-:
> recode evaluates the rules from left to right. Once a value has been transformed, it will not be
> transformed again. Thus if rules “overlap”, the first matching rule is applied, and further matches are
> ignored.
>
> Phil
>
> On 29/07/2011, at 11:42 AM, Daniel Marcelino wrote:
>
>> Dear all,
>> I have a doubt on the looping process that might be simple to solve. I
>> have a sort of variables with the same scales 1 to 9 that I want to
>> recode their values to a different scale. However, when I do a loop
>> for replace these values I got some confusing values in particular for
>> the value 1. To deal with this problem I using a not pretty
>> solution: I'm running 2 loops over the variables as follow.
>>
>> foreach v of varlist q* pq* {
>> replace `v' = 0 if `v' ==1
>> replace `v' = 0.25 if `v' ==2
>> replace `v' = 0.50 if `v' ==9
>> replace `v' = 0.75 if `v' ==3
>> replace `v' = 0.9 if `v' == 4
>> }
>>
>> /* I'm loop again because I cannot transform 4==1 in the same previous
>> loop. Therefore, I replaced 4==0.9 and now 0.9 == 1
>>
>>
>> foreach v of varlist q35a* pq26a* {
>> replace `v' = 1 if `v' ==0.9
>> }
>>
>> My doubt is: there is a way to replace all values without the risk of
>> the new value be considered again in the loop?
>>
>>
>> Daniel
>>
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
About me: http://danielmarcelino.zip.net/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/