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RE: st: Identify and Replace Values
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
RE: st: Identify and Replace Values
Date
Mon, 12 Jul 2010 20:56:03 +0200
<>
***********
h strtoname
***********
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Tobias Friedli
Sent: Montag, 12. Juli 2010 20:35
To: [email protected]
Subject: Re: st: Identify and Replace Values
Thank you very much, it seems to work like a charm. Only Problem is, that
the some Model-names contain spaces and then Stata says "invalid name". I
know there is a command to relpace all the spaces by an underscore, but i
can't find it anymore. Anybody knows this command? Thanks
On Mon, 12 Jul 2010 13:52:46 -0400
Jeph Herrin <[email protected]> wrote:
> how about
>
> levelsof traded_model, local(traded)
> levelsof new_model, local(new)
> local onlytraded : list traded - new
> local onlynew : list new - traded
> local others : list onlynew | onlytraded
>
> replace traded_model="others" if inlist(traded_model,"`others'")
> replace new_model ="others" if inlist(new_model,"`others'")
>
>
> hth,
> Jeph
>
> On 7/12/2010 12:18 PM, Hobst wrote:
>> Hello
>>
>> I have a huge dataset containing automotive brand-swiching data. I have a
>> variable called traded_model and another variable called new_model. in
>>order
>> to output a symmetric swiching matrix i need to identify all the
>>expressions
>> that are eigther only in traded_brand or only in new_brand and replace
the
>> expression with "others". For example a model called "318d" exists in
>> traded_model but not in new_model, so all the "318d" should be replaced
by
>> "others".
>>
>> Does anyone have an idea how i can programm that? I dont get it to work,
>>and
>> doing it manually is close to impossible as there are more than 1000
>> different model names.
>>
>> Any help is much appreciated, thank you.
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*
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*
* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/