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: Regular expressions with locals
From
Anthony Hong <[email protected]>
To
[email protected]
Subject
Re: st: Regular expressions with locals
Date
Tue, 26 Jun 2012 11:01:07 -0400
Hey Nick, that's similar to what I am doing now, but I figured,
because I've never used regular expressions before, it would be an
opportunity to try it out.
Also, you guessed right. That I'm trying to grab labels and make a table.
Would you know how I could do this with regular expressions though?
Because suppose the variable has an underscore in between it? I would
like to be able to identify the portion between the first and last
underscore only and grab the text in between.
On Tue, Jun 26, 2012 at 4:48 AM, Nick Cox <[email protected]> wrote:
> For the record, I give an orthodox non-regular expression solution.
> This example guesses that (a) Anthony wants to emit the output one
> variable at a time (b) he wants variable labels. Either guess could be
> wrong, naturally.
>
> * sandpit to play in
>
> set obs 3
> gen phstat = _n
> forval i = 1/3 {
> gen _Iphstat_`i' = phstat == `i'
> }
>
> * transformation
>
> forval i = 1/3 {
> local in _Iphstat_`i'
> local out : subinstr local in "_I" ""
> local out : subinstr local out "_" " = "
> label var `in' "`out'"
> }
>
>
> On Tue, Jun 26, 2012 at 5:33 AM, Anthony Hong <[email protected]> wrote:
>
>> Hello! I have in a local macro a list of variables such as _Iphstat_1
>> from xi: logistic. I would like to remove the _I from the beginning
>> and the _# from the end and create a new local with simply a string
>> "phstat = 1".
>>
>> How might I go about doing this?
>>
>> I realize this can be done with various string functions, but I'm
>> curious about the regex commands.
>
> *
> * 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/