get_matches

The <code>'matchit'</code> class model object

object

The <code>'data.frame'</code> class object used in creation of <code>object</code>.

model_frame

A string indicating the ID for the datset used in the call to <code><a rd-options="" href="/link/matchit?package=MatchIt&version=3.0.2" data-mini-rdoc="MatchIt::matchit">matchit</a></code>. 
This can be used in combination with <code>newdata</code> to return the base dataset. Defaults to 
<code>NULL</code>.

id_cols

A new <code>data.frame</code> object to extract matched observations from. Used in 
conjunction with <code>id_cols</code>. Defaults to <code>NULL</code>.

newdata

Get the resulting matches from a <code>matchit</code> model object. This function allows the 
user to extract the matches from the original dataset used in model building or from a new dataset
that has a matching set of key column(s) (<code>id_cols</code>).

Selects matched samples of the original treated and
control groups with similar covariate distributions -- can be
used to match exactly on covariates, to match on propensity
scores, or perform a variety of other matching procedures. The
package also implements a series of recommendations offered in
Ho, Imai, King, and Stuart (2007) <DOI:10.1093/pan/mpl013>.

Kosuke Imai

MatchIt

Nonparametric Preprocessing for Parametric Causal Inference

Daniel Ho

Gary King

Elizabeth Stuart

Alex Whitworth

get_matches function

A string indicating the ID for the datset used in the call to <code><a rd-options='' href='matchit'>matchit</a></code>. 
This can be used in combination with <code>newdata</code> to return the base dataset. Defaults to 
<code>NULL</code>.

get_matches: Get matches from matchit object

Description

Usage

Arguments

Value