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AW: AW: AW: st: string variable question
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
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: [email protected]
[mailto:[email protected]] Im Auftrag von Data Analytics
Corp.
Gesendet: Montag, 29. März 2010 17:05
An: [email protected]
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: [email protected]
> [mailto:[email protected]] Im Auftrag von Data
Analytics
> Corp.
> Gesendet: Montag, 29. März 2010 16:24
> An: [email protected]
> 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: [email protected]
>> [mailto:[email protected]] Im Auftrag von Eric Booth
>> Gesendet: Montag, 29. März 2010 15:38
>> An: [email protected]
>> 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
>> [email protected]
>> 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
>>> [email protected]
>>> 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:
>> * http://www.stata.com/help.cgi?search
>> * 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
[email protected]
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/