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Re: st: Re: statalist-digest V4 #2578
Do forgive me: I was answering your question.
> It would be nice to be able to do something like:
>
> egen houseinc_total=rsum(houseinc#)
> which would sum houseinc1-houseinc100 but exclude housein_mean
but I see now that you also spelled the last-mentioned
variable "houseinc_mean" and it now appears that the latter
spelling is what you have in your dataset. As you say,
this gives another answer to your question: rename
the variable. The renaming need not be permanent.
rename houseinc_mean foobar
egen houseinc_total = rowsum(houseinc*)
rename foobar houseinc_mean
Low tricks beat clever ones, some of the time.
Contrary to your guess, mine is that adding another
detail to the wildcard syntax is a programming pain
and in this case I really can't see it happening,
particularly as this one is not, as I understand it,
common regular expression syntax.
Nick
[email protected]
[email protected]
Thanks for the response, but houseinc* would include houseinc_mean and I
just want houseinc1-houseinc100.
Like I said, I don't think it is possible, but it would be nice if it
were included.
I often find myself renaming variables to get round this - ie I'd rename
houseinc_mean to mean_houseinc then use houseinc* as you suggested. I
simply thought that it would be easy to add something to they varlist
syntax to enable the expansion of just vars ending in a number. But
possibly I'm the only person who would like this.
Mathew
------------------------------
Date: Wed, 10 Jan 2007 13:41:31 -0000
From: "Nick Cox" <[email protected]>
Subject: st: RE: syntax - expanding vars ending in a number
houseinc* is the wildcard you want. This
is documented at [U] 11.4 and the help for varlist.
Nick
[email protected]
[email protected]
> I don't know if it is possible to refer to a set of variables
> called the
> same thing but all ending in a number, but I'd quite like it to be.
>
> For example, consider a dataset with the variables houseinc1 to
> houseinc100, houseinc_mean and id. It would be nice to be able to do
> something like:
>
> egen houseinc_total=rsum(houseinc#)
> which would sum houseinc1-houseinc100 but exclude housein_mean
>
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