com.datumbox.framework.core.mathematics.linearprogramming

Class DataEnvelopmentAnalysis

java.lang.Object

com.datumbox.framework.core.mathematics.linearprogramming.DataEnvelopmentAnalysis

public class DataEnvelopmentAnalysis
extends java.lang.Object

Class that performs Data Envelopment Analysis. It requires the installation of lpsolve 5.5.2.0. http://lpsolve.sourceforge.net/5.5/ References: http://en.wikipedia.org/wiki/Data_envelopment_analysis http://deazone.com/en/resources/tutorial/weights-to-determine-relative-efficiency

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DataEnvelopmentAnalysis.DeaRecord DEA method separates the features of the observations in input and output; The DeaRecord is a wrapper Object which stores the input and output parts of our data points.

Constructor Summary

Constructors

Constructor and Description
DataEnvelopmentAnalysis()

Method Summary

Modifier and Type	Method and Description
AssociativeArray	estimateEfficiency(java.util.Map<java.lang.Object,DataEnvelopmentAnalysis.DeaRecord> id2DeaRecordMapInput, java.util.Map<java.lang.Object,DataEnvelopmentAnalysis.DeaRecord> id2DeaRecordMapOutput) Estimates the efficiency of the records by running DEA

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataEnvelopmentAnalysis

public DataEnvelopmentAnalysis()

Method Detail

estimateEfficiency

public AssociativeArray estimateEfficiency(java.util.Map<java.lang.Object,DataEnvelopmentAnalysis.DeaRecord> id2DeaRecordMapInput,
                                           java.util.Map<java.lang.Object,DataEnvelopmentAnalysis.DeaRecord> id2DeaRecordMapOutput)

Estimates the efficiency of the records by running DEA

Parameters:

id2DeaRecordMapInput - AssociativeArray with the DeaRecords

id2DeaRecordMapOutput -

Returns:

Map with the scores of the records