Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: AW: st: string variable question


From   "Data Analytics Corp." <walt@dataanalyticscorp.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: AW: st: string variable question
Date   Mon, 29 Mar 2010 11:00:31 -0400

This looks like it would work, But it's interactive. I'd like to add this to a .do file. Someone suggested using replace. Maybe that will work.

Thanks for all the help.

Walt

Eric Booth wrote:

  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

*
*   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
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/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index