wide_data

datasets

Streamlines the process of transitioning between data formats commonly used in survival analysis. Functions convert longitudinal data between formats used as input for survival models as well as support overall preparation. Users are able to focus on model building rather than data wrangling.

Charles Ingulli

wlsd

Wrangling Longitudinal Survival Data

wide_data function

A data frame with 3 rows on the following 14 variables.<dl>
 <dt><code>id</code></dt>
<dd>An identification variable</dd> <dt><code>time1</code></dt>
<dd>First time observation column</dd> <dt><code>time2</code></dt>
<dd>Second time observation column</dd> <dt><code>time3</code></dt>
<dd>Third time observation column</dd> <dt><code>time4</code></dt>
<dd>Fourth observation column</dd> <dt><code>event1</code></dt>
<dd>Status indicator at first time</dd> <dt><code>event2</code></dt>
<dd>Status indicator at second time</dd> <dt><code>event3</code></dt>
<dd>Status indicator at third time</dd> <dt><code>event4</code></dt>
<dd>Status indicator at fourth time</dd> <dt><code>var11</code></dt>
<dd>First explanatory variable at first time</dd> <dt><code>var12</code></dt>
<dd>First explanatory variable at second time</dd> <dt><code>var13</code></dt>
<dd>First explanatory variable at third time</dd> <dt><code>var14</code></dt>
<dd>First explanatory variable at fourth time</dd> <dt><code>var2</code></dt>
<dd>Second explanatory variable</dd> 
</dl>

Format

Wide Format Data Example — wide_data

A data frame with 3 rows on the following 14 variables.<dl>
 <dt><code>id</code></dt>
<dd>An identification variable</dd>

 <dt><code>time1</code></dt>
<dd>First time observation column</dd>

 <dt><code>time2</code></dt>
<dd>Second time observation column</dd>

 <dt><code>time3</code></dt>
<dd>Third time observation column</dd>

 <dt><code>time4</code></dt>
<dd>Fourth observation column</dd>

 <dt><code>event1</code></dt>
<dd>Status indicator at first time</dd>

 <dt><code>event2</code></dt>
<dd>Status indicator at second time</dd>

 <dt><code>event3</code></dt>
<dd>Status indicator at third time</dd>

 <dt><code>event4</code></dt>
<dd>Status indicator at fourth time</dd>

 <dt><code>var11</code></dt>
<dd>First explanatory variable at first time</dd>

 <dt><code>var12</code></dt>
<dd>First explanatory variable at second time</dd>

 <dt><code>var13</code></dt>
<dd>First explanatory variable at third time</dd>

 <dt><code>var14</code></dt>
<dd>First explanatory variable at fourth time</dd>

 <dt><code>var2</code></dt>
<dd>Second explanatory variable</dd>

 
</dl>

wide_data: Wide Format Data Example

Description

Usage

Arguments

Format

Examples