add_vif

lifecycle::badge("maturing")
Add the variance inflation factor (VIF) or
generalized VIF (GVIF) to the regression table.
Function uses <code><a href="/link/car%3A%3Avif()?package=gtsummary&version=1.6.3" data-mini-rdoc="gtsummary::car::vif()">car::vif()</a></code> to calculate the VIF.

Creates presentation-ready tables summarizing data
sets, regression models, and more. The code to create the tables is
concise and highly customizable. Data frames can be summarized with
any function, e.g. mean(), median(), even user-written functions.
Regression models are summarized and include the reference rows for
categorical variables. Common regression models, such as logistic
regression and Cox proportional hazards regression, are automatically
identified and the tables are pre-filled with appropriate column
headers.

Daniel D. Sjoberg

gtsummary

Presentation-Ready Data Summary and Analytic Result Tables

Joseph Larmarange

Michael Curry

Jessica Lavery

Karissa Whiting

Emily C. Zabor

Xing Bai

Esther Drill

Jessica Flynn

Margie Hannum

Stephanie Lobaugh

Shannon Pileggi

Amy Tin

Gustavo Zapata Wainberg

add_vif function

<dl><dt>x</dt>
<dd><code>'tbl_regression'</code> object</dd>
<dt>statistic</dt>
<dd><code>"VIF"</code> (variance inflation factors, for models with no categorical terms) or one of/combination of <code>"GVIF"</code> (generalized variance inflation factors), <code>"aGVIF"</code> 'adjusted GVIF, i.e. <code>GVIF^[1/(2*df)]</code> and/or <code>"df"</code> (degrees of freedom).
See <code><a href="/link/car%3A%3Avif()?package=gtsummary&version=1.6.3" data-mini-rdoc="gtsummary::car::vif()">car::vif()</a></code> for details.</dd>
<dt>estimate_fun</dt>
<dd>Default is <code>style_sigfig()</code>.</dd></dl>

Arguments

Example 1
<img src="https://raw.githubusercontent.com/ddsjoberg/gtsummary/main/man-images/add_vif_ex1.png" alt="image of rendered example table" style="width:45%;">Example 2
<img src="https://raw.githubusercontent.com/ddsjoberg/gtsummary/main/man-images/add_vif_ex2.png" alt="image of rendered example table" style="width:45%;">

Example Output

lifecycle::badge("maturing")
Add the variance inflation factor (VIF) or
generalized VIF (GVIF) to the regression table.
Function uses <code><a href='https://rdrr.io/pkg/car/man/vif.html'>car::vif()</a></code> to calculate the VIF.

Add Variance Inflation Factor — add_vif

<dl>

<dt>x</dt>
<dd><code>'tbl_regression'</code> object</dd>


<dt>statistic</dt>
<dd><code>"VIF"</code> (variance inflation factors, for models with no categorical terms) or one of/combination of <code>"GVIF"</code> (generalized variance inflation factors), <code>"aGVIF"</code> 'adjusted GVIF, i.e. <code>GVIF^[1/(2*df)]</code> and/or <code>"df"</code> (degrees of freedom).
See <code><a href='https://rdrr.io/pkg/car/man/vif.html'>car::vif()</a></code> for details.</dd>


<dt>estimate_fun</dt>
<dd>Default is <code>style_sigfig()</code>.</dd>

</dl>

Example 1
<img src="https://raw.githubusercontent.com/ddsjoberg/gtsummary/main/man-images/add_vif_ex1.png" alt="image of rendered example table" style="width:45%;">

Example 2
<img src="https://raw.githubusercontent.com/ddsjoberg/gtsummary/main/man-images/add_vif_ex2.png" alt="image of rendered example table" style="width:45%;">

add_vif: Add Variance Inflation Factor

Description

Usage

Arguments

Example Output

See Also