optrefine (version 1.1.1)

strat: Helper for object of class "strat"

Description

Creates an object of S3 class "strat"

Usage

strat(z, X, base_strata = NULL, refined_strata = NULL, details = NULL)

Value

Object of class strat if valid

Arguments

z

Vector of treatment assignment

X

Covariate matrix or data.frame

base_strata

Original strata, if they exist

refined_strata

Refined strata, if they exist

details

A list of details from the linear program. Include X_std if calculated

Examples

# Don't need to include any stratification
strat_object <- strat(z = rhc_X[, "z"], X = rhc_X[, !(colnames(rhc_X) %in% "z")])

# Can include base and/or refined stratification if desired
strat_object <- strat(z = rhc_X[, "z"], X = rhc_X[, !(colnames(rhc_X) %in% "z")],
                      base_strata = rep(1, nrow(rhc_X)),
                      refined_strata = NULL)