August 2009
Intermediate to advanced
648 pages
17h 35m
English
book
Categorical Data Analysis Using The SAS® System, 2nd Edition
by Maura E. Stokes, Charles S. Davis, Gary G. Koch
Content preview from Categorical Data Analysis Using The SAS® System, 2nd Edition
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15.8. Diagnostic Data
The diagnostic data analyzed in Chapter 10 and Chapter 14 are now analyzed with the GEE method. Recall that subjects received test and standard procedures at two times, and researchers recorded response as positive or negative. Besides analyzing these data with conditional logistic regression and repeated measures WLS, you can also analyze these data with the GEE method. There are 793 clusters (corresponding to the number of subjects) and four measurements per subject (corresponding to the two types of tests at two times).
The following DATA steps input the diagnosis data and create an observation for each measurement so that the GEE facilities in the GENMOD procedure can be used. In addition, an indicator variables is ...
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