Use the SAS version of the RSCABS program given in Appendix
1 to analyze the liver basophilia data in Table 9.2. Alternatively, use
the R version of this program that is in R package referenced in StatCharrms
(2017). The SAS version of StatCharrms is given in Appendix 1, Chapter  5,
and the RSCABS program is included there also. Hothorn (2016, section 2.1.8.1)
contains several ways severity scores can be analyzed and provides R programs.
One of these is RSCABS, though it is referred to as Cochran–Armitage using
collapsing categories and uses only the standard CA test, not the
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