Martin,
-update query- is what told me that Stata had last been updated on 10/15/07.
-help whatsnew- told me that the -regex- functions have not been updated since then.
Thanks again,
Howie
Howie Lempel
Research Assistant
The Brookings Institution | Economic Studies
1775 Massachusetts Ave NW | Washington DC 20036
[email protected] | p: (202) 238-3576
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Martin Weiss
Sent: Friday, October 17, 2008 5:01 PM
To: [email protected]
Subject: st: Re: RE: Re: regexr and missing values
Yeah, well, that is not a foolproof method to check. You should rather
type -update query- when connected to be absolutely sure...
HTH
Martin
_______________________
----- Original Message -----
From: "Howard Lempel" <[email protected]>
To: <[email protected]>
Sent: Friday, October 17, 2008 10:59 PM
Subject: st: RE: Re: regexr and missing values
> Thanks, Martin!
>
> I now know that lack of updating is not the problem.
>
> Howie
>
> Howie Lempel
> Research Assistant
> The Brookings Institution | Economic Studies
>
> 1775 Massachusetts Ave NW | Washington DC 20036
> [email protected] | p: (202) 238-3576
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Martin Weiss
> Sent: Friday, October 17, 2008 4:53 PM
> To: [email protected]
> Subject: st: Re: regexr and missing values
>
> "I also do not know how to see what Stata has updated since my last
> update":
> see -help whatsnew-
>
> HTH
> Martin
> _______________________
> ----- Original Message -----
> From: "Howard Lempel" <[email protected]>
> To: <[email protected]>
> Sent: Friday, October 17, 2008 10:34 PM
> Subject: st: regexr and missing values
>
>
>> Hello all,
>>
>> I'm using Stata 10 (last updated 10/10/07) and am having a bit of trouble
>> with the -regexr- function. I can't tell if I've stumbled on a bug or if
>> I'm doing something wrong.
>>
>> I am trying to use -regexr- to transform a string variable called
>> lfpatfin. I'd like to take every observation where the last letter in
>> lfpatfin is "U" and substitute an "E" for the "U". The code appears to
>> work except that two observations where lfpatfin was missing have been
>> replaced with an "E". This appears to be similar to a problem Yun Liu
>> had
>> with -regexm- on July 16 in this thread:
>> http://www.stata.com/statalist/archive/2008-07/msg00596.html, but I can't
>> tell if Yun's issue was ever resolved. I have been unable to reproduce
>> the problem using the auto dataset or a dataset generic dataset I
>> created.
>> My code and some output follows. I did nothing to test in between
>> generating it and the -list- command.
>>
>> gen test = regexr(lfpatfin,"U$", "E")
>> list lfpatfin test in 1/1000 if lfpatfin != test
>>
>> +-----------------+
>> | lfpatfin test |
>> |-----------------|
>> 70. | FRU FRE |
>> 105. | RFU RFE |
>> 148. | U E |
>> 161. | U E |
>> 554. | FU FE |
>> |-----------------|
>> 861. | FU FE |
>> 914. | U E |
>> +-----------------+
>> list lfpatfin test if missing(lfpatfin) & !missing(test)
>>
>> +-----------------+
>> | lfpatfin test |
>> |-----------------|
>> 20074. | E |
>> 24067. | E |
>> +-----------------+
>>
>> . list lfpatfin test in 16000/16200 if missing(lfpatfin)
>>
>> +-----------------+
>> | lfpatfin test |
>> |-----------------|
>> 16156. | |
>> 16162. | |
>> 16166. | |
>> 16170. | |
>> 16175. | |
>> |-----------------|
>> 16176. | |
>> 16179. | |
>> 16180. | |
>> 16183. | |
>> 16186. | |
>> |-----------------|
>> 16197. | |
>> +-----------------+
>>
>> For what it's worth, I try to make similar changes to lfpatfin
>> (substituting "B"s for final "D"s) later in my code and had the same
>> problem.
>>
>> I'd appreciate it a lot if anyone has any explanation. I also do not
>> know
>> how to see what Stata has updated since my last update, but I would be
>> grateful if anyone knows where to go for that - I'd like to check whether
>> the -regex- functions have been changed. Unfortunately, I don't have the
>> admin rights to update my version of Stata.
>>
>> Thanks for your consideration.
>> Howie
>>
>>
>> Howie Lempel
>> Research Assistant
>> The Brookings Institution | Economic Studies
>>
>> 1775 Massachusetts Ave NW | Washington DC 20036
>> [email protected] | p: (202) 238-3576
>>
>>
>>
>> *
>> * 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/
>
> *
> * 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/
*
* 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/
