Which Groups Differ From Each Other
Use contrasts when the question is which levels or terms differ.
- pairwise contrasts across grouped predictors
- multiplicity-adjusted p-values where multiple contrasts are requested
contrasts <- associate$compare(
data,
outcome = demented,
by = prs.tertile,
covariates = c(sex, PCA),
type = "contrast",
contrast = "pairwise"
)What comes back
Contrast rows such as Mid - Low, High - Low, and High - Mid, using the comparison summary schema.
Plotting
visualize$associations$forest(contrasts)
visualize$associations$heatmap(contrasts)