Description Usage Arguments Details Value Author(s) References See Also Examples

Solve the Dual DEA

1 |

`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. |

`rts` |
Returns to scale. 1 for the CRS assumption, and 2 for the VRS assumption. |

The input-oriented dual DEA under the CRS assumption is calculated. For model specification, take a look at Cooper et al. (2007).

A data frame with J1*(1+M+N) dimension, of which has efficiency scores, optimal virtual prices for inputs and outputs.

Dong-hyun Oh, [email protected]

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).

1 2 3 4 5 6 7 8 | ```
## An output-oriented primal problem with 1 input and 2 outputs
tab5.1.dat <- data.frame(y1 = c(4, 8, 8, 4, 3, 1),
y2 = c(9, 6, 4, 3, 5, 6),
x = c(1, 1, 1, 1, 1, 1))
(re <- dea(tab5.1.dat, noutput = 2, orientation = 2, rts = 1))
## An output-oriented dual problem with 1 input and 2 outputs
re <- dual.dea(tab5.1.dat, noutput = 2, orientation = 2, rts = 1)
``` |

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