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st: dates in the 'if' condition
From
Tomas.Konecny@cnb.cz
To
<statalist@hsphsun2.harvard.edu>
Subject
st: dates in the 'if' condition
Date
Tue, 9 Aug 2011 15:28:07 +0200
Hi,
I have not used Stata in time-series context before and would like to ask
a rather simple thing. Having the time variable in a %tq format, it displays the date label but the underlying value
is a number. I have tried to condition with the `if' statement referring to the label instead of the underlying value, but to no avail. Is there any way to do so?
Here is an example:
storage display value
variable name type format label variable label
--------------------------------------------------------------------------------------------------------------------------------------
time float %tq
keep if time==1997q4
1997q4 invalid name
r(198);
keep if time=="1997q4"
type mismatch
r(109);
Thank you,
Tomas
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