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Last data update: 2014.03.03

R: Linear Programming for the Free Disposable Hull

fdh	R Documentation

Linear Programming for the Free Disposable Hull

Description

Solve input(output)-oriented FDH

Usage

fdh(base = NULL, frontier = NULL, noutput = 1, orientation=1)

Arguments

`base`	A data set for DMUs to be evaluated. A data frame with J1*(M+N) dimention, where J1 is the number of DMUs, M for the number of inputs, and N for the number of outputs.
`frontier`	A data set for DMUs to be used in constructing a production possibility set (PPS). A data frame with J2*(M+N) dimention, where J2 is the number of DMUs, M for the number of inputs, and N for the number of outputs.
`noutput`	The number of outputs (N).
`orientation`	Orientation of measurement. 1 for the input-oriented measure, and 2 for the output-oriented measure.

Details

The input (output) -oriented FDH is calculated.

Value

A data frame of J1*1 dimention which shows efficiency scores.

Author(s)

Dong-hyun Oh, oh.donghyun77@gmail.com

References

Cooper, W., Seiford, L. and Tone, K. (2007). Data envelopment analysis: a comprehensive text with models, applications, references and DEA-solver software (2nd ed.). Springer Verlag, New York.

Lee, J. and Oh, D. (forthcoming). Efficiency Analysis: Data Envelopment Analysis. Press (in Korean).

Examples

## input-oriented FDH with 1 input and 1 output.
tab7.1.dat <- data.frame(y = c(1, 2, 4, 6, 7, 9, 9),
                              x = c(3, 2, 6, 4, 8, 8, 10))
(re <- fdh(tab7.1.dat, noutput = 1, orientation = 1))

## input-oriented FDH with 2 input and 1 output.
tab7.10.dat <- data.frame(y = c(1, 1, 1, 1, 1, 1),
                               x1 = c(2, 3, 6, 3, 6, 6),
                               x2 = c(5, 3, 1, 8, 4, 2))
(re <- fdh(tab7.10.dat, noutput = 1, orientation = 1))