references {deaR}

References

Description

Extract the reference set for each DMU (inefficient DMUs and efficicent DMUs that are combination of other efficient DMUs) from a DEA model solution.

Usage

references(deasol,
           thr = 1e-4)

Arguments

deasol

Object of class dea obtained with some of the DEA model functions.

thr

Tolerance threshold (for avoiding miss detection of efficient DMUs due to round off errors)

Author(s)

Vicente Coll-Serrano ([e-mail]). Quantitative Methods for Measuring Culture (MC2). Applied Economics.

Vicente Bolós ([e-mail]). Department of Business Mathematics

Rafael Benítez ([e-mail]). Department of Business Mathematics

University of Valencia (Spain)

Examples

# Replication results model DEA1 in Tomkins and Green (1988).
data("Departments")
# Calculate Total income
Departments$Total_income <- Departments[, 5] + Departments[, 6] + Departments[, 7] 
data_DEA1 <- make_deadata(Departments,
                          inputs = 9,
                          outputs = c(2, 3, 4, 12))
result <- model_basic(data_DEA1, 
                      orientation = "io",
                      rts = "crs")
references(result) # Table 3 (p.157)