R: Set global contrasts

set_sum_contrasts {afex} | R Documentation

## 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()

### 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()`.

### Value

nothing. These functions are called for their side effects to change the global options.

[Package afex version 0.17-8 Index]