You do not say what constitutes pain, but I will guess from your example
that it is the presence of the character sequence "D4" anywhere in the
code variable.
In that case, the pain variable can be created with a single string
function:
gen byte pain = strpos(code,"D4")>0
Or
gen byte pain = strmatch(code,"*D4*")
(In Stata 8, replace strpos() with index() and strmatch() with match())
Hope this helps
David
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Raphael
Fraser
Sent: 23 February 2006 16:41
To: [email protected]
Subject: st: String Problem
I have the following string variable code and would like to create the
variable pain. Code is a combination of two digit codes (1 letter,1
number) lumped together as many 6 codes can be combined.
code pain
Z1D4 1
Y1 0
H4T2D4F7 1
D4D5 1
I am not sure what combination of string functions to use. Can anyone
help?
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