.switch_reference_level

Reorders the rows of a contrast matrix to properly set the reference level

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_level function

<dl><dt>contrast_matrix</dt>
<dd>An unlabeled contrast matrix</dd>
<dt>old_reference</dt>
<dd>The previously specified reference level, usually the
default for the scheme found by <code>.get_reference_level</code></dd>
<dt>new_reference</dt>
<dd>The index of the row to use as the new reference level</dd></dl>

Arguments

Switch reference level in contrast matrix — .switch_reference_level

<dl>

<dt>contrast_matrix</dt>
<dd>An unlabeled contrast matrix</dd>


<dt>old_reference</dt>
<dd>The previously specified reference level, usually the
default for the scheme found by <code>.get_reference_level</code></dd>


<dt>new_reference</dt>
<dd>The index of the row to use as the new reference level</dd>

</dl>

.switch_reference_level: Switch reference level in contrast matrix

Description

Usage

Value

Arguments