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st: RE: drop observations - if statement
From
Kieran McCaul <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: drop observations - if statement
Date
Thu, 6 Mar 2014 08:54:27 +0800
...
Try:
drop if trim(cusip)==""
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of R Zhang
Sent: Thursday, 6 March 2014 6:42 AM
To: [email protected]
Subject: st: drop observations - if statement
Hi all,
I used the following commands to drop observations based on a string variable - CUSIP- that takes missing values, i.e. delete observations with missing CUSIP,
drop if cusip==""
cusip is str10
(0 observations deleted)
could you explain why "(0 observations deleted)"?
thanks,
Rochelle
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