Learn R Programming

DJL (version 3.9)

Distance Measure Based Judgment and Learning

Description

Implements various decision support tools related to the Econometrics & Technometrics. Subroutines include correlation reliability test, Mahalanobis distance measure for outlier detection, combinatorial search (all possible subset regression), non-parametric efficiency analysis measures: DDF (directional distance function), DEA (data envelopment analysis), HDF (hyperbolic distance function), SBM (slack-based measure), and SF (shortage function), benchmarking, Malmquist productivity analysis, risk analysis, technology adoption model, new product target setting, network DEA, dynamic DEA, intertemporal budgeting, etc.

Copy Link

Version

Install

install.packages('DJL')

Monthly Downloads

822

Version

3.9

License

GPL-2

Maintainer

DongJoon Lim

Last Published

March 16th, 2023

Functions in DJL (3.9)

dm.hdf

Distance measure using HDF
map.soa.sbm

SOA mapping using SBM
dm.sf

Distance measure using SF
map.soa.sf

SOA mapping using SF
map.corr

Correlation mapping for reliability test
roc.dea

Rate of change (RoC) calculation using DEA
map.soa.hdf

SOA mapping using HDF
plp

Print LP object
map.soa.dea

SOA mapping using DEA
map.soa.ddf

SOA mapping using DDF
ma.aps.reg

Combinatorial search (all possible subset) for regression analysis
target.arrival.sf

Arrival target setting using SF
roc.malmquist

Malmquist Index: time-series productivity analysis
roc.sf

Rate of change (RoC) calculation using SF
roc.hdf

Rate of change (RoC) calculation using HDF
target.arrival.dea

Arrival target setting using DEA
target.arrival.hdf

Arrival target setting using HDF
target.spec.dea

Spec target setting using DEA
dataset.engine.2015

Dataset of auto engines from MY2005 to MY2015.
dm.network.dea

Distance measure using DEA on a two-stage network structure
dataset.hev.2013

Dataset of hybrid electric vehicles from MY1997 to MY2013.
dataset.airplane.2017

Dataset of commercial airplanes from 1965 to 2017.
dm.dynamic.bc

Dynamic DEA in the presence of intertemporal Budget Constraints
dm.dea

Distance measure using DEA
dm.sbm

Distance measure using SBM
dm.mahalanobis

Distance measure using Mahalanobis distance for outlier detection
dm.ddf

Distance measure using DDF