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From: Henry on 9 Mar 2010 23:33
Hello there,

I was wondering if there is a function that can help us to identify if
there is a letter (no matter which one from A-Z) in a variable. Of
course the variable will be defined as character since it contains
some letters in some observations. So, just wonder if there is a
function to identify it as 0 or 1? In other words, can I get a new
indicator = 1 if the variable "answer" contains any letter from A to
Z. and = 0 if not containing any letter? Thanks a lot!

DATA OLD;
INPUT ID $ 1-3
ANSWER $ 5-9;
DATALINES;
001 ACBED
002 11
003 12
004 zx
;
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