Not sure about your aim, but you might take a look at tobit, and check the
section on intreg. It allows one to estimate a model on data that
contains any subset of a)cases with exact values, b)cases with upper and
lower bounds (e.g., like the ranges you describe below), c)cases with
values censored from above, and d)cases with values censored from below.
This command (-intreg-) may be of use to you.
Hope this helps.
Sam
On Fri, 4 Feb 2005, Alan Acock wrote:
> I have data on income grouped in ranges (0-29,999) ... (100,000 and over).
> Is there a program in Stata that will convert these ranges to point values
> (medians)? Is there a way that takes the distribution into account? Is there
> a way to get a value for the end category of 100,000 or more that takes the
> distribution into account. I know demographers have formulas for this, but
> has anybody put these into a Stata program?
>
> Alan Acock
>
>
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