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Re: AW: st: string variable question


From   Eric Booth <ebooth@ppri.tamu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: AW: st: string variable question
Date   Mon, 29 Mar 2010 09:29:28 -0500

>

  Assuming you've already got this dataset in memory:
**
clear
inp A1 A2
1 2
2 3
3 4
5 6
end
**

You could use -input- :
**
inp str25  brand
"Cheerios" 
"Wheaties" 
"Frosted"
"other"
end
**

~ 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 9:23 AM, Data Analytics Corp. wrote:

> 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
>>> 
>>> *
>> 
>> 
>> 
>> 
> 
> 
> -- 
> ________________________
> 
> 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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> *   http://www.ats.ucla.edu/stat/stata/





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