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st: RE: Problem identifying a specific value of a string variable
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: RE: Problem identifying a specific value of a string variable
Date
Fri, 10 Sep 2010 01:22:11 +0200
<>
Try http://www.stata.com/statalist/archive/2005-04/msg00890.html
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Brad Humphreys
Sent: Donnerstag, 9. September 2010 23:19
To: [email protected]
Subject: st: Problem identifying a specific value of a string variable
Dear Statalisters,
I have a string variable that I cannot seem to get Stata to perform
operations on. This is part of a multiple step string to numeric
conversion. The string variable is col1_d
. desc col1_d
storage display value
variable name type format label variable label
----------------------------------------------------------------------------
---------------
col1_d str5 %9s
. tab col1_d
col1_d | Freq. Percent Cum.
------------+-----------------------------------
2e | 1 0.00 29.09
The variable takes many values. I have not reported the rest, as I
want to keep them. I can't get that observation, or about 10 more,
identified, using -list-, -drop-, or -replace-. I tried:
. l if col1_d=="2e"
Returns nothing. I tried:
. drop if col1_d=="2e"
(0 observations deleted)
I tried -trim-, -ltrim-, strltrim- on the variable, thinking there
could be leading blanks in there. No luck. I tried copying the
offending value for col1_d from the data editor into the do file
command. No luck. The variable col1_d is created using this command
gen col1_d=col1 if frac_col1==0
where col1 is a string variable.
. desc col1
storage display value
variable name type format label variable label
----------------------------------------------------------------------------
---------------
col1 str10 %10s
Any help would be appreciated. I am at wits end.
Brad Humphreys
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