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st: RE: Concatenating datasets that actually exist! (Was RE: st: RE: bar graph of multiple variables)


From   "Sherman, Richard" <RSherman@fsw.leidenuniv.nl>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Concatenating datasets that actually exist! (Was RE: st: RE: bar graph of multiple variables)
Date   Fri, 11 Mar 2005 11:37:12 +0100

Dear Clive and others on the list,

Nick Cox's March 8 suggestion on how to construct a single bar graph of
multiple variables, which drew on Clive's and Scott Merryman's
suggestions, does just what I wanted to do--it places a number of bar
graphs of categorical variable frequencies side by side on a single x
axis.

-Richard

Clive Nicholas wrote:

--------------------------------------
Sorry for the delay in response! Well, the suggested change worked, but
it
only got me as far as:

. *Create data set: 7 variables with values {1, 2, 3}
. clear

. set obs 30
obs was 0, now 30

. qui {

.
. *Create frequency values
. qui {

.
. dsconcat `file1' `file2' `file3' `file4' `file5' `file6' `file7'
file C:\Documents.dta not found
r(601);

end of do-file
r(601);

Is this odd, considering that the lines

qui {
forv i = 1/7 {
        tempfile file`i'
        xcontract c`i', freq(freq) idnum(`i')  saving("`file`i''")
}
}

creates and prepares the seven tempfiles for -dsconcat-? Being a
programming dunce, I'm clearly missing something obvious. I'm only
pursuing this, by the way, because Richard Sherman's original problem is
an interesting one for me as well.
-----------------------------------------------
Richard Sherman
Department of Political Science, Leiden University
Leiden, Netherlands
http://homepage.mac.com/richard.sherman/

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