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RE: st: RE: Re: Multiple value labels

From   "MA V" <>
Subject   RE: st: RE: Re: Multiple value labels
Date   Sun, 26 Mar 2006 22:41:41 +0000

Thanks so much for your suggestion.
One question: I have version 8.2 of Stata so I don't have the "levelsof" command. Is there anyway of geeting this plug-in for my version? Or is there a similar version of this command for Stata 8.2? I believe this command would be very useful to me even in other contexts (that not the value labels).

From: "Nick Cox" <>
To: <>
Subject: st: RE: Re: Multiple value labels
Date: Sun, 26 Mar 2006 17:55:15 +0100

Thanks for the plug. I'd have to recommend -labmask-
myself as probably the most user-friendly solution here.

If it didn't exist, the problem yields to a few lines.

* check the assumption of correspondence in
your desired direction:

bysort var1 (var2) : assert var2[1] == var2[_N]

How do I list observations in a group that differ on a variable?

* get the distinct values of -var2-:

levelsof var2, local(levels)

foreach l of local levels {
	su var1 if var2 == "`l'", meanonly
	label def var1 `r(min)' "`l'", add

By assumption the values of -var1- given -var2-
are identical. So we can do a look-up by a -summarize-
of those values, and add a new value label each
time around the loop.

Then we link the labels to the variable:

label val var1 var1


Rosy Reynolds

> Nick Cox's nifty program -labmask-, part of the -labutil-
> suite, will do the
> job. It assigns the values (or optionally value labels) of
> one variable as
> the value labels of another.
> -findit labutil-


> > I have the following in my data:
> > obs        var1           var2
> > 1         304                House
> > 2         666                Land
> > 3         200                Building
> > 4         304                House
> > 5         304                House
> > ...       ...                  ....
> >
> > where var2 contains the labels for var1. Since I have many
> labels it will
> > not be easy to create the labels for var1 by hand. Is there an easy
> > procedure to make stata recognize that there is an unique
> correspondence
> > between var1 and var2 and to label var1 using var2?

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