ggdid.AGGTEobj

A function to plot <code>AGGTEobj</code> objects

The standard Difference-in-Differences (DID) setup involves two periods and two groups -- a treated group and untreated group. Many applications of DID methods involve more than two periods and have individuals that are treated at different points in time. This package contains tools for computing average treatment effect parameters in Difference in Differences setups with more than two periods and with variation in treatment timing using the methods developed in Callaway and Sant'Anna (2021) <doi:10.1016/j.jeconom.2020.12.001>. The main parameters are group-time average treatment effects which are the average treatment effect for a particular group at a a particular time. These can be aggregated into a fewer number of treatment effect parameters, and the package deals with the cases where there is selective treatment timing, dynamic treatment effects, calendar time effects, or combinations of these. There are also functions for testing the Difference in Differences assumption, and plotting group-time average treatment effects.

Brantly Callaway

Treatment Effects with Multiple Periods and Groups

Pedro H. C. Sant'Anna

ggdid.AGGTEobj function

<dl><dt>object</dt>
<dd>either a <code>MP</code> object or <code>AGGTEobj</code> object. See <code>help(ggdid.MP)</code> and <code>help(ggdid.AGGTEobj)</code>.</dd>
<dt>ylim</dt>
<dd>optional y limits for the plot; setting here makes the y limits
the same across different plots</dd>
<dt>xlab</dt>
<dd>optional x-axis label</dd>
<dt>ylab</dt>
<dd>optional y-axis label</dd>
<dt>title</dt>
<dd>optional plot title</dd>
<dt>xgap</dt>
<dd>optional gap between the labels on the x-axis. For example,
<code>xgap=3</code> indicates that the labels should show up for every third
value on the x-axis. The default is 1.</dd>
<dt>legend</dt>
<dd>Whether or not to include a legend (which will indicate color
of pre- and post-treatment estimates). Default is <code>TRUE</code>.</dd>
<dt>ref_line</dt>
<dd>A reference line at this value, usually to compare confidence
intervals to 0. Set to NULL to omit.</dd>
<dt>theming</dt>
<dd>Set to FALSE to skip all theming so you can do it yourself.</dd>
<dt>...</dt>
<dd>other arguments</dd></dl>

Arguments

Plot AGGTEobj objects — ggdid.AGGTEobj

<dl>

<dt>object</dt>
<dd>either a <code>MP</code> object or <code>AGGTEobj</code> object. See <code>help(ggdid.MP)</code> and <code>help(ggdid.AGGTEobj)</code>.</dd>


<dt>ylim</dt>
<dd>optional y limits for the plot; setting here makes the y limits
the same across different plots</dd>


<dt>xlab</dt>
<dd>optional x-axis label</dd>


<dt>ylab</dt>
<dd>optional y-axis label</dd>


<dt>title</dt>
<dd>optional plot title</dd>


<dt>xgap</dt>
<dd>optional gap between the labels on the x-axis. For example,
<code>xgap=3</code> indicates that the labels should show up for every third
value on the x-axis. The default is 1.</dd>


<dt>legend</dt>
<dd>Whether or not to include a legend (which will indicate color
of pre- and post-treatment estimates). Default is <code>TRUE</code>.</dd>


<dt>ref_line</dt>
<dd>A reference line at this value, usually to compare confidence
intervals to 0. Set to NULL to omit.</dd>


<dt>theming</dt>
<dd>Set to FALSE to skip all theming so you can do it yourself.</dd>


<dt>...</dt>
<dd>other arguments</dd>

</dl>

ggdid.AGGTEobj: Plot `AGGTEobj` objects

Description

Usage

Arguments