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st: destring numeric and non-numeric data

From   Taylor Cook <>
Subject   st: destring numeric and non-numeric data
Date   Fri, 21 Aug 2009 10:04:20 -0500

I am working with CMS's Hospital Compare data for the first time. One
of the sets lists recommended treatment for a condition (ex:aspirin
for heart attack), the percent of patients with the condition that
received the treatment (Score), and the total number of patients who
presented with the condition (SampelSize).
The variables I am interested in, Score and SampleSize, are both
string variables and, here is the tricky part, CMS recorded the data
with numeric and non-numeric symbols. For example, all of the scores
are "95%" and the sample size is "106 patients." These percent symbols
and the word "patient" have made it difficult to destring. Any
suggestions would be greatly appreciated.
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