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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Appendix A: Statistical Methodology for Weighted Least Squares
Consider the general contingency table displayed in Table 13.16, where s represents the number of rows, or groups, in the table, and r represents the number of responses.
| Response | |||||
|---|---|---|---|---|---|
| Group | 1 | 2 | ... | r | Total |
| 1 | n11 | n12 | ... | n1r | n1+ |
| 2 | n21 | n22 | ... | n2r | n2+ |
| ... | ... | ... | ... | ... | ... |
| s | ns1 | ns2 | ... | nsr | ns+ |
The proportion of subjects in the ith group who have the jth response is written
pij = nij/ni+
Suppose 
represents the vector of responses for the ith subpopulation. If 
, then n follows ...
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