st: Create String Variable out of Variable Names

[Kyle C Longest <klongest@email.unc.edu>]

I have a set of variables that I would like to use to generate a 
singular String variable. The number of cases in each resulting value 
is inconsequential.

So for example if I had 5 variables (a b c d e) in a data set with 100 
observations I would like a String variable that looked something like:

Var |  Frequency
a              20
b              20
c              20
d              20
e              20

Now I know that in this simple case I could do this line by line with:

egen var = seq(), f(1) t(5)
replace var = "a" if var==1
replace var = "b" if var==2
...

But in the case of 64 variables this is unrealistically tedious, 
especially as I am hoping to incorporate this into a more encompassing 
program to be used with different sets of variables.

The problem I've run into with -foreach- is that it loops so that in 
the end the resulting variable looks like (using the example from 
above).

Var | Freq
e      100

[Also note that the variables are not mutually exclusive (ala dummies), 
so that a case could ==1 on several of the variables]

Any help with this would be greatly apprecaited,
Thank you,
Kyle C. Longest
Phd Student - Dept of Sociology
Univ. of North Carolina - Chapel Hill
klongest@email.unc.edu
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