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RE: Use of ADDL and II

From: Denney, William S. <william_denney>
Date: Wed, 12 Nov 2008 11:55:54 -0500

Hi Batul,
 
The first method should work-- I use it relatively often.
 
Thanks,
 
Bill

________________________________

From: owner-nmusers
On Behalf Of Batul Parta
Sent: Wednesday, November 12, 2008 10:36 AM
To: nmusers
Subject: [NMusers] Use of ADDL and II


Dear All,

I am modeling a repeated dosing study. Subjects were given twice daily
doses for 8 weeks and a number of samples were taken on the last day of
dosing. There were also sparse samples taken at weeks 2, 4, and 6. I
want to use ADDL and II for the dosing scheme. Can I lump all doses into
one line or do I have to stop the dosing record prior to each sample and
re-start again? In other words, will the following file structure work:

ID TIME AMT ADDL II DV
1 0 10 112 12 0
1 143 0 0 0 124
1 287 0 0 0 131
.
.
.

Or do I have to use the following:

ID TIME AMT ADDL II DV
1 0 10 14 12 0
1 143 0 0 0 124
1 144 10 14 12 0
1 287 0 0 0 131
.
.
.

Thank you in advance.

BP


        

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Received on Wed Nov 12 2008 - 11:55:54 EST

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