Coding for missing data values
From: "Muralidharan, Bharath" Bharath.Muralidharan@stjude.org
Subject: [NMusers] Coding for missing data values
Date: Mon, June 28, 2004 11:32 am
Dear NONMEM Users,
Let me introduce myself as Kumar. I am a graduate student
in the department of Biomedical Engineering at UT Health
science center Memphis. Is there a way in which I can code
for missing data relating to a possible covariate? An example
would be that I have Technetium clearance for only few patients
and do not have most of the other data set. How do I code for
the fact that the data item is missing in a few individuals?
I assume that NONMEM reads this as a zero value rather than
as a missing value.
Kumar
Graduate Student
Pharmaceutical Sciences Department
St. Jude Children's Research Hospital
332 North Lauderdale Street
Memphis, TN 38105
Danny Thomas Research Center