thanks to david.
On Wed, 24 Sep 2003, David E Moore wrote:
> I believe that the latest version of Stata has a way to accomplish what you want
> that is different from my approach, but I'm using version 6. At any rate, you
> can get the value labels for any variable by: (1) finding the label definition,
> and (2) extracting the appropriate label. Thus, it is a two step process. The
> trick is to use the extended functions for local macros. Here's an example:
>
> local vlname: value label `varname'
> local yyy: label `vlname' `x'
>
> The first statement obtains the name of the value labels assigned to variable
> `varname' and assigns it to the local macro, "vlname." The second statement
> grabs the actual label associated with the value `x' defined for the labels
> assigned to variable `varname'. This assumes that `x' is a valid value for the
> labels and that value labels have been assigned to `varname'. If either of
> these conditions is false, then the extended functions return empty strings.
> Also, I'm not sure how you are getting the coded values of your variables. When
> I was writing generic code to process value labels I used a crude but effect
> indirect method. The idea was to obtain the coded values for every category
> from the -tabulate- command. Here's a code fragment that cycles through every
> coded value of a categorical variable and displays its label:
>
> tempname rval /* matrix to store coded label
> value*/
> quietly tab `varname', matrow(`rval') /* get the coded values
> */
> local rvals = rowsof(`rval') /* how many values?
> */
> local vlname: val label `varname' /* get the name of the value
> labels */
> if "`vlname'" != "" { /* if varname has value labels
> */
> local i 1
> while `i' <= `rvals' { /* cycle through all the values
> */
> local ival = `rval'[`i',1] /* get a category code
> */
> local vlab: label `vlname' `ival' /* get the associated label
> */
> display "label `i'(`ival'): `vlab'" /* show the code's label
> */
> local i = `i' + 1 /* go get the next one
> */
> }
> }
>
> Hope this helps.
>
> Dave
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]]On Behalf Of Lars Korsholm
> > Sent: Wednesday, September 24, 2003 3:11 PM
> > To: [email protected]
> > Subject: st: obtaining locals
> >
> >
> > Dear listers
> >
> > I am sure that someone know a smart way to do what I want. :-)
> >
> > the sort version:
> > Is it possible to obtain the label associated to a given value?
> >
> > The long verson:
> > I am writing a small tabulation program. The user (also me) specify some
> > of the levels that a kategorical (integer) veriabel has. and for each of
> > these chosen levels the program produce one line of output.
> >
> > I would like the line to start with the label associated with the level
> > and not the integer in my loop.
> >
> > i.e. something like
> >
> > program define mytab
> > syntax varname, ni(numlist ..) ..
> > foreach x in numlist `ni' {
> > count if `varname'=�=`x' & ..
> > di "level yyy:" `r(N)' ...
> > }
> > end
> >
> > where yyy is the contens of the label associated with varname
> > that corespond to the value `x'
> > If no label is assigned, then `x' must do.
> >
> >
> > Hope someone can help me on this one.
> >
> > Best Lars
> >
> >
> > ............................................
> > : Lars Korsholm Ph.D., :
> > : Department of Statistics :
> > : University of Southern Denmark :
> > : Sdr. Boulevard 23A, 2. :
> > : DK-5000 Odense C :
> > : Phone +45 6550 3608 :
> > : Mobil +45 3033 3617 :
> > : Fax +45 6595 7766 :
> > : Mail [email protected] :
> > : Web http://www.isd.sdu.dk/~korsholm :
> > :..........................................:
> >
> >
> >
> > *
> > * For searches and help try:
> > * http://www.stata.com/support/faqs/res/findit.html
> > * http://www.stata.com/support/statalist/faq
> > * http://www.ats.ucla.edu/stat/stata/
> >
> >
>
............................................
: Lars Korsholm Ph.D., :
: Department of Statistics :
: University of Southern Denmark :
: Sdr. Boulevard 23A, 2. :
: DK-5000 Odense C :
: Phone +45 6550 3608 :
: Mobil +45 3033 3617 :
: Fax +45 6595 7766 :
: Mail [email protected] :
: Web http://www.isd.sdu.dk/~korsholm :
:..........................................:
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
