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st: Transforming numeric to categorical (not to string!) variables


From   TEWODAJ MOGUES <tmogues@students.wisc.edu>
To   Stata _ <statalist@hsphsun2.harvard.edu>
Subject   st: Transforming numeric to categorical (not to string!) variables
Date   Tue, 10 Aug 2004 19:22:08 -0400

Dear Statalisters,

Here's something I've been trying to figure out for a while, even though it seems so straightforward. How do I take a regular numerical variable called COLOUR that takes on the values 1, 2, and 3, and change it into a categorical variable so that 1 becomes "green", 2 becomes "blue" and 3 "white"? I.e. when viewing the data in the data editor, say, I want to see the colour names and not the numbers. And yet if I were, say, to type 
    sum colour
I want it to give me as the min "1, the max "3", the mean and std.dev. etc. So I don't want to make the variable a string variable. 

A related question: Once I have achieved that, is there a way I can make the data editor window show me the number values instead of the name values of such categorical variables. That is, is there a way to toggle between one view and the other? SPSS, which is in many other ways of course inferior to stata, does however have such a toggle option that stata doesn't seem to have.

Thanks much!
Tewodaj

~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~
Tewodaj Mogues
Dept. of Agricultural and Applied Economics
University of Wisconsin - Madison
427 Lorch St. #317, Taylor Hall
Madison, WI 53706

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