Thall and Vail (1990) give a data set on two-week seizure counts for 59 epileptics. The number of seizures was recorded for a baseline period of 8 weeks, and then patients were randomly assigned to a treatment group or a control group. Counts were then recorded for four successive two-week periods. The subject's age is the only covariate.
his data frame has 295 rows and the following 5 columns:
the count for the 2-week period.
treatment, "placebo" or "progabide"
post treatment. 0 for no, 1 for yes
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