is_centered

Given a contrast matrix or list of contrast matrices (eg from
<code>enlist_contrasts()</code>), return a logical vector of whether each contrast is
centered or not.

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

is_centered function

<dl><dt>contrast_matrices</dt>
<dd>Contrast matrix or list of contrast matrices</dd>
<dt>USE.NAMES</dt>
<dd>Logical, whether vector should be named</dd></dl>

Arguments

Check for orthogonality — is_centered

<dl>

<dt>contrast_matrices</dt>
<dd>Contrast matrix or list of contrast matrices</dd>


<dt>USE.NAMES</dt>
<dd>Logical, whether vector should be named</dd>

</dl>

is_centered: Check for orthogonality

Description

Usage

Value

Arguments

Examples