strata

This is a special function used only in identifying the strata variables
when defining an <code>exactMatch</code> during a call to <code>fullmatch</code>,
<code>pairmatch</code>, or <code>match_on</code>. It should not be called externally.

Distance based bipartite matching using minimum cost flow, oriented
to matching of treatment and control groups in observational studies ('Hansen'
and 'Klopfer' 2006 <doi:10.1198/106186006X137047>). Routines are provided to
generate distances from generalised linear models (propensity score
matching), formulas giving variables on which to limit matched distances,
stratified or exact matching directives, or calipers, alone or in
combination.

Josh Errickson

optmatch

Functions for Optimal Matching

Ben Hansen

Mark Fredrickson

Josh Buckner

Adam Rauh

strata function

<dl><dt>...</dt>
<dd>any number of variables of the same length.</dd></dl>

Arguments

Identify Stratafication Variables — strata

<dl>

<dt>...</dt>
<dd>any number of variables of the same length.</dd>

</dl>

strata: Identify Stratafication Variables

Description

Usage

Value

Arguments

Examples