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AW: AW: AW: st: string variable question


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   AW: AW: AW: st: string variable question
Date   Mon, 29 Mar 2010 17:06:38 +0200

<> 

You can -tokenize- and subsequently use a loop with -forvalues- or
-foreach-. Just advise more clearly on your data structure...



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Data Analytics
Corp.
Gesendet: Montag, 29. März 2010 17:05
An: statalist@hsphsun2.harvard.edu
Betreff: Re: AW: AW: st: string variable question

This seems to get the job done.  Tedious, but it works.  Why can't I 
just create a string vector as in R?

Martin Weiss wrote:
> <> 
>
> " I should be able to do something like
>
>             gen str brand = "Cheerios" "Wheaties" "Frosted" etc"
>
>
>
>
> Only one -gen- statement is necessary/allowed for "brand", such as - gen
str
> brand = "Cheerios"-. Subsequently you replace via - replace brand =
> "Wheaties" in 2-...
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Data
Analytics
> Corp.
> Gesendet: Montag, 29. März 2010 16:24
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: AW: st: string variable question
>
> Hi,
>
> Sorry, but I'm not making myself clear.  Let me try again.  Here's the
data:
>
> A1   A2
> 1.35   -2.48
> 1.50   0.56
> 0.75   -1.2
> ...
>
> I want to add a third variable, brand, that has nothing to do with the 
> specific numbers for A1 and A2, but rather with the rows.  So, I want
>
>             A1   A2         brand
>             1.35   -2.48   Cheerios
>             1.50   0.56     Wheaties
>             0.75   -1.2      Frosted
>             ...
>
> A1 and A2 come from an MDS estimation by converting the e(Y) matrix to 
> variables.  I now need to add the brands for further processing.  It 
> seems I should be able to do something like
>
>             gen str brand = "Cheerios" "Wheaties" "Frosted" etc
>
> But it doesn't work, unless I just mistyped something.  Hope this helps 
> clarify what I need.  I really appreciate the help.
>
> Thanks,
>
> Walt
>
>
> Martin Weiss wrote:
>   
>> <> 
>>
>> Or, in one fell swoop:
>>
>> *************
>> clear*
>> inp A1 A2
>> 1 2
>> 2 3
>> 3 4
>> 5 6
>> end
>>
>> gen brand=string(A1)+string(A2)
>> list
>> *************
>>
>>
>>
>> HTH
>> Martin
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Eric Booth
>> Gesendet: Montag, 29. März 2010 15:38
>> An: statalist@hsphsun2.harvard.edu
>> Betreff: Re: st: string variable question
>>
>>   
>>
>> Use -tostring- to combine the numeric vars, ex:
>>
>> *****
>> clear
>> inp A1 A2
>> 1 2
>> 2 3
>> 3 4
>> 5 6
>> end
>>
>> tostring A1 A2, replace
>> gen brand = A1 + A2
>> *****
>>
>> ~ Eric
>> __
>> Eric A. Booth
>> Public Policy Research Institute
>> Texas A&M University
>> ebooth@ppri.tamu.edu
>> Office: +979.845.6754
>>
>>
>>
>> On Mar 29, 2010, at 8:32 AM, Data Analytics Corp. wrote:
>>
>>   
>>     
>>> Hi,
>>>
>>> I have two numeric variables in a Stata dataset: A1 and A2.  Each has 26
>>>     
>>>       
>> elements.  I want to create a third variable, brand, as part of a do
>>     
> program
>   
>> that has 26 brand names.  I tried
>>   
>>     
>>> gen str brand = "A" "B" and so on to "Z"
>>>
>>> but that didn't work.  How can I create a brand variable?
>>>
>>> Thanks,
>>>
>>> Walt
>>>
>>>
>>>
>>> -- 
>>> ________________________
>>>
>>> Walter R. Paczkowski, Ph.D.
>>> Data Analytics Corp.
>>> 44 Hamilton Lane
>>> Plainsboro, NJ 08536
>>> ________________________
>>> (V) 609-936-8999
>>> (F) 609-936-3733
>>> walt@dataanalyticscorp.com
>>> www.dataanalyticscorp.com
>>>
>>> *
>>> *   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:
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>> *   http://www.stata.com/support/statalist/faq
>> *   http://www.ats.ucla.edu/stat/stata/
>>
>>   
>>     
>
>
>   


-- 
________________________

Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
walt@dataanalyticscorp.com
www.dataanalyticscorp.com

*
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