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The koch data frame has 288 rows and 4 columns.
koch
This data frame contains the following columns:
a numeric vector
an ordered factor with levels: 1 < 2 < 3
1
2
3
data(koch) fit <- ordgee(ordered(y) ~ trt + as.factor(day), id=id, data=koch, corstr="exch") summary(fit)
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