Date:         Tue, 7 Jun 2005 08:12:17 -0700
Reply-To:     prasad_prabhud@HOTMAIL.COM
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         prasad_prabhud@HOTMAIL.COM
Organization: http://groups.google.com
Subject:      Help with Coding
Comments: To: sas-l@uga.edu
Content-Type: text/plain; charset="iso-8859-1"

I have following Patient Data with 5 months of data with 100mg drug,
150mg drug and 200mg drug.

 ID A100_1 A100_2 A100_3 A100_4 A100_5 A150_1 A150_2 A150_3 A150_4
A150_5 A200_1 A200_2 A200_3 A200_4 A200_5
100    1      0      0     0       0     0       1     1        1     0
     0       0     0      0      1
101    0      0      1     1       1     0       0     0        0     0
     0       0     0      0      0
102    1      1      0     0       0     0       0     0        0     0
     0       0     1      1      1
103    0      0      0     1       0     0       0     0        0     1
     0       0     0      0      0
104    1      1      1     0       0     0       0     0        0     0
     0       0     0      1      1

What I want is the Pattern in which Patient has been on Drugs?
Like Patient started with 100mg and has been on 100mg drug throughout 5
months or Patient started with different mg drug and then continued
with 100mg drug.

I would appreciate if anybody can help me in this.