I agree with Svend, but Martin's is a understandable wish.
This is a trickier problem that might first appear. For example,
variable names might be too long to allow a simple prefix or suffix.
Whatever way of shortening the name is used, there is still a need to
maintain distinct names. This kind of problem arises with other
commands, such as -xi-, but producing good defaults could easily add a
lot of code to -collapse-.
Rightly or wrongly, Stata makes this your problem.
Nick
[email protected]
Martin Weiss
True, but I would want Stata to take care of the naming automatically.
E.g.,
prepend or append the name of the stat being calculated so that "(mean)
gpa"
becomes "mean_gpa" in the output...
Svend Juul
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.
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