Martin Weiss wrote:
In this example, does your Stata complain about a "name conflict" as
well?
**************
webuse college, clear
collapse (mean) gpa (median) gpa [fw=number], by(year)
**************
In effect, you cannot calculate two statistics for the same variable
without
renaming one of the results. This is mentioned in [D] collapse at the
bottom
of page 48, but rather cursorily. And correct me if I am wrong, but
there is
just no way you could have these statistics renamed in the dialog box.
You
must first find out that you have the problem I am describing, and
second
edit the command line to
**********
webuse college, clear
collapse (mean) meangpa=gpa (median) mediangpa=gpa [fw=number], by(year)
**********
to make this work. It took me quite some time to find that out...
================================================================
In the dialog box you can type in the variable field:
meangpa=gpa
Logically, I think it is obvious that two different pieces of
information must have different names.
Svend
__________________________________________
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C, Denmark
Phone: +45 8942 6090
Home: +45 8693 7796
Email: [email protected]
__________________________________________
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