set_sum_contrasts: Set global contrasts
Description
These functions are simple wrappers to set contrasts globally via options(contrasts = ...).
Usage
set_sum_contrasts()
set_deviation_contrasts()
set_effects_contrasts()
set_default_contrasts()
set_treatment_contrasts()
Value
nothing. These functions are called for their side effects to change the global options.
Details
set_deviation_contrasts and set_effects_contrasts are wrappers for set_sum_contrasts. Likewise, set_default_contrasts is a wrapper to set_treatment_contrasts().