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Re: st: Regular expressions
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Regular expressions
Date
Fri, 7 Mar 2014 13:35:59 +0000
clear
set obs 1
gen test = "Robin Hood (2000)"
gen test2 = trim(regexr(test, "(\([1-2][0-9][0-9][0-9]\))", ""))
list
Nick
[email protected]
On 7 March 2014 13:28, Marco Savegnago <[email protected]> wrote:
> Dear all,
> as regard point 1) this might work:
>
> gen movie2 = rtrim(substr(movie, 1, index(movie, "(") - 1))
>
> I thinks it works as long as the title of the movie does not contain
> other round brackets except those for the year.
>
> What do you think?
> best,
> Marco
>
> 2014-03-07 12:49 GMT+01:00 Nick Cox <[email protected]>:
>> Your second problem sounds like for -split-. I wouldn't reach for
>> regular expressions there.
>> Nick
>> [email protected]
>>
>>
>> On 7 March 2014 11:40, Estrella Gomez <[email protected]> wrote:
>>> Hi,
>>>
>>> I would like to do two modifications to two string variables using
>>> regular expression:
>>>
>>> 1) I have a list of movie titles with a year included; for instance:
>>> "Robin Hood (2010)". I would like to drop the years and the
>>> parenthesis, so the final value should be "Robin Hood". The number of
>>> words in the title varies a lot across movies
>>>
>>> 2) I have a variable indicating where the movie was produced. In some
>>> cases there are several countries, for instance "UK, Germany, Canada,
>>> Switzerland". I would like to generate one variable per country (1st
>>> variable take value UK, 2nd Germany and so on). Again, the number of
>>> countries per movie is not fixed; it varies from 1 to 4
>>>
>>> Any suggestion?
>>>
>>> Thanks a lot,
>>> Estrella
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