.switch_reference_if_needed

Check if the contrast matrix is able to switch reference levels, and if it
is requested, do so

internal

Quickly set and summarize contrasts for factors prior to regression analyses. Intended comparisons, baseline conditions, and intercepts can be explicitly set and documented without the user needing to directly manipulate matrices. Reviews and introductions for contrast coding are available in Brehm and Alday (2022)<doi:10.1016/j.jml.2022.104334> and Schad et al. (2020)<doi:10.1016/j.jml.2019.104038>.

Thomas Sostarics

contrastable

Consistent Contrast Coding for Factors

.switch_reference_if_needed function

<dl><dt>contrast_matrix</dt>
<dd>Contrast matrix</dd>
<dt>new_reference_label</dt>
<dd>Name of the level to use</dd>
<dt>new_reference_index</dt>
<dd>Index of the level to use</dd></dl>

Arguments

Check if reference switching is necessary — .switch_reference_if_needed

<dl>

<dt>contrast_matrix</dt>
<dd>Contrast matrix</dd>


<dt>new_reference_label</dt>
<dd>Name of the level to use</dd>


<dt>new_reference_index</dt>
<dd>Index of the level to use</dd>

</dl>

.switch_reference_if_needed: Check if reference switching is necessary

Description

Usage

Value

Arguments