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st: Re: Re: How can I check that a variable exists?
From
"Martin Weiss" <martin.weiss1@gmx.de>
To
<statalist@hsphsun2.harvard.edu>
Subject
st: Re: Re: How can I check that a variable exists?
Date
Thu, 12 Mar 2009 23:25:16 +0100
<>
"capture confirm weight" should be "capture confirm variable weight"
HTH
Martin
_______________________
----- Original Message -----
From: "Martin Weiss" <martin.weiss1@gmx.de>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, March 12, 2009 11:22 PM
Subject: st: Re: How can I check that a variable exists?
<>
******
sysuse auto, clear
capture confirm variable weight
if !_rc {
di in red "weight exists"
}
else {
di in red "weight does not exist"
}
drop weight
capture confirm weight
if !_rc {
di in red "weight exists"
}
else {
di in red "weight does not exist"
}
******
HTH
Martin
_______________________
----- Original Message -----
From: "Benjamin Villena Roldan" <bvillena@troi.cc.rochester.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, March 12, 2009 11:16 PM
Subject: st: How can I check that a variable exists?
Dear statalist,
This may sound like a trivial question, but I unsuccessfully looked for
an
answer so far.
I need to perform certain action A if there is a variable XA defined in
the dta file, and an action B if there is a variable XB in the dta file.
How
can I do so? Any ideas?
Thanks
Benjamin
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