Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: range of a stringvariable


From   "Tomas Lind" <tomas.lind@ki.se>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: range of a stringvariable
Date   Wed, 28 Apr 2010 16:02:51 +0200

Dear listers

Choose individuals based on a string variable with a range of values

I am working with ICD-10 codes (codes for different types of diseases). The
codes start with a letter A - Z followed by 2 or 3 digits. In some cases
they might end with the letter A. Say that I have a dataset with 5 subjets
(id=1 to 5) with these ICD-10 codes (fake data, in reality I have millions
of subjects):

I460  E343  I46  C764  E438

How can I choose individuals with ICD-10 codes in the range E300 to E499
(not including codes that end up with A). What about if I want to include
codes that ends with an A. (There is a convenient command for ICD-9 codes,
but not for ICD-10 codes.) 

Any suggestions are welcome.


/Tomas

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index