===================================================================================
DJL v3.9 (Release date: 2023-03-16)
===================================================================================

Code>
1. dm.network.dea: index bug fixed


===================================================================================
DJL v3.8 (Release date: 2022-03-16)
===================================================================================

Code>
1. dm.network.dea: Output-oriented & IRS/DRS implemented


===================================================================================
DJL v3.7 (Release date: 2021-05-22)
===================================================================================

Code>
1. dm.network.dea: new feature added
2. dm.dynamic.bc: bug fixed

Man>
1. dm.network.dea: new feature added
2. dm.dea: typos fixed


===================================================================================
DJL v3.6 (Release date: 2020-09-16)
===================================================================================

Code>
1. roc.malmquist: post-hoc index adjustment (+1) applied to ddf & sf measures
2. *.ddf, *.hdf, *.sf: argument wd changed for versatility


===================================================================================
DJL v3.5 (Release date: 2020-09-15)
===================================================================================

Code>
1. roc.malmquist: m.arg bug fixed


===================================================================================
DJL v3.4 (Release date: 2020-05-10)
===================================================================================

Code>
1. target.spec.dea: pin argument added

Man>
1. target.spec.dea: pin argument added


===================================================================================
DJL v3.3 (Release date: 2020-05-01)
===================================================================================

Code>
1. roc.dea: a bug on unordered dataset fixed
2. roc.hdf: a bug on unordered dataset fixed
3. roc.sf : a bug on unordered dataset fixed
4. plp    : a new function added

Man>
1. target.arrival.dea: a typo fixed
2. target.arrival.hdf: a typo fixed
3. target.arrival.sf : a typo fixed
4. plp               : a new function added


===================================================================================
DJL v3.2 (Release date: 2019-12-24)
===================================================================================

Code>
1. target.arrival.dea: new feature (intermediate RoCs) added
2. target.arrival.hdf: new feature (intermediate RoCs) added
3. target.arrival.sf : new feature (intermediate RoCs) added

Man>
1. target.arrival.dea: new feature (intermediate RoCs) added
2. target.arrival.hdf: new feature (intermediate RoCs) added
3. target.arrival.sf : new feature (intermediate RoCs) added


===================================================================================
DJL v3.1 (Release date: 2019-11-17)
===================================================================================

Code>
1. target.arrival.dea: bug fixed for a single DMU on the frontier
2. target.arrival.hdf: bug fixed for a single DMU on the frontier
3. target.arrival.sf : bug fixed for a single DMU on the frontier


===================================================================================
DJL v3.0 (Release date: 2019-05-01)
===================================================================================

Code>
1. dm.dynamic.bc: new feature added

Man>
1. dm.dynamic.bc: new feature added


===================================================================================
DJL v2.9.2 (Release date: 2019-03-07)
===================================================================================

Code>
1. roc.sf : bug fixed for only one DMU presenting local RoC
2. roc.hdf: bug fixed for only one DMU presenting local RoC


===================================================================================
DJL v2.9.1 (Release date: 2019-02-11)
===================================================================================

Code>
1. target.spec.dea: bug fixed - ifelse vs if without else - caused by R update


===================================================================================
DJL v2.9 (Release date: 2019-02-06)
===================================================================================

Code>
1. roc.dea: bug fixed for only one DMU presenting local RoC
2. target.spec.dea: NULL as a default value for wv (scaling factor will be applied)

Man>
1. target.spec.dea: NULL as a default value for wv (scaling factor will be applied)


===================================================================================
DJL v2.8 (Release date: 2018-12-09)
===================================================================================

Code>
1. roc.malmquist: orientation default to be "n"
2. dm.sbm: bug fixed on the normalization factor t

Man>
1. roc.malmquist: orientation default to be "n" 


===================================================================================
DJL v2.7 (Release date: 2018-04-18)
===================================================================================

Code>
1. roc.malmquist: new feature added

Man>
1. roc.malmquist: new feature added


===================================================================================
DJL v2.6 (Release date: 2016-09-27)
===================================================================================

Code>
1. dm.ddf/dea/hdf/sbm/sf: argument 'o' added
2. dm.hdf: consistency checking simplified using argument 'o'
3. dm.ddf/sf: weak disposability bug fixed
4. roc.dea/df: overall code simplified using argument 'o' with matrix operation
5. map.soa.ddf/dea/sbm/sf: overall code simplified with matrix operation
6. map.soa.hdf: new feature added
7. roc.hdf: new feature added
8. target.arrival.hdf: new feature added
9. target.spec.dea: argument 'bound' added

Man>
1. dm.ddf/dea/hdf/sbm/sf: argument 'o' added
2. map.soa.hdf: new feature added
3. roc.hdf: new feature added
4. target.arrival.hdf: new feature added
5. target.spec.dea: argument 'bound' added


===================================================================================
DJL v2.5 (Release date: 2016-08-18)
===================================================================================

Code>
1. dm.hdf: hyperbolic distance function added
2. dm.sf: dual output added / default g set to be xdata*ydata
3. dm/map.soa.ddf / map.soa/roc/target.arrival.sf: default g set to be xdata*ydata


Man>
1. dm.hdf: hyperbolic distance function added
2. dm.sf: dual output added / default g set to be xdata*ydata
3. dm/map.soa.ddf / map.soa/roc/target.arrival.sf: default g set to be xdata*ydata


===================================================================================
DJL v2.4 (Release date: 2016-07-10)
===================================================================================

Code>
1. dm.ddf/dea/sbm/sf: convexity argument added for Free Disposal Hull
2. map.soa.ddf/dea/sbm/sf: convexity argument added for Free Disposal Hull
3. target.arrival.dea/sf: convexity argument added for Free Disposal Hull
4. target.spec.dea: convexity argument added for Free Disposal Hull
5. ma.aps.reg: refined with homemade-combination function
6. dm.sbm: bug fixed

Man>
1. dm.ddf/dea/sbm/sf: convexity argument added for Free Disposal Hull
2. map.soa.ddf/dea/sbm/sf: convexity argument added for Free Disposal Hull
3. target.arrival.dea/sf: convexity argument added for Free Disposal Hull
4. target.spec.dea: convexity argument added for Free Disposal Hull
5. dm.dea: reference / example revised


===================================================================================
DJL v2.3 (Release date: 2016-06-06)
===================================================================================

Code>
1. map.corr: new feature added
2. dm.mahalanobis: row(s) including NA will be excluded

Man>
1. map.corr: new feature added
2. dm.mahalanobis: value 'excluded' added
3. target.spec.dea: reference updated


===================================================================================
DJL v2.2 (Release date: 2016-05-16)
===================================================================================

Code>
1. dm.mahalanobis: new feature added

Man>
1. dm.mahalanobis: new feature added


===================================================================================
DJL v2.1 (Release date: 2016-02-25)
===================================================================================

Code>
1. target.spec.dea: initial checks for alpha/beta added /
                    feasible bound check added

Man>
1. target.spec.dea: description & reference added
2. dm.sbm: weak-pareto optimal -> alternate optima


===================================================================================
DJL v2.0 (Release date: 2016-02-07)
===================================================================================

Code>
1. target.spec.dea: input estimation bug fixed: 1-delta^dt -> (1/delta)^dt /
                    procedure modified to encompass the traditional inverse DEA /
                    initial checks added for dumb inputs
2. target.arrival.dea: bug fixed for s.eff & infinity checks /
                       initial checks added for dumb inputs
3. target.arrival.sf: initial checks added for dumb inputs
4. roc.dea: initial checks added for dumb inputs
5. roc.sf: initial checks added for dumb inputs

Man>
1. target.spec.dea: descriptions & example added for changes made


===================================================================================
DJL v1.9 (Release date: 2016-01-17)
===================================================================================

Code>
1. ma.aps.reg: name changed from aps.reg (sorry!) /
               mad/aic/bic switches turned off as a default setting /
               alias test added to cope with the singularity /
               warning added for case of no model meeting given criteria 
Man>
1. target.spec.dea: description revised / reference added


===================================================================================
DJL v1.8 (Release date: 2015-12-17)
===================================================================================

Code>
1. All codes: initial checks added
2. aps.reg: new feature (all possible subset regression) added

Man>
1. aps.reg: new feature (all possible subset regression) added


===================================================================================
DJL v1.7 (Release date: 2015-11-17)
===================================================================================

Dataset>
1. All datasets framed for easy use

Man>
1. All examples using dataset rewritten


===================================================================================
DJL v1.6 (Release date: 2015-11-07)
===================================================================================

Dataset>
1. dataset.airplane.2017 added

Code>
1. dm.sf: weak disposability output constraint bug(missing gamma) fixed
2. roc.dea: no c but mean to calc avgroc
3. roc.sf: no c but mean to calc avgroc / geometric mean is used for equi-ratio
4. target.arrival.dea: calc iroc-ftype after sg / returns roc_avg and roc_local
5. target.arrival.sf added

Man>
1. dataset.hev.2013: ~MY2013
2. dm.sbm: 3rd example, margin
3. dm.sf: ratio->multiplicative form
4. target.spec.dea: than->over
5. typo: min - Date-sum max->min
6. map.soa: indices->index, changes->score


===================================================================================
DJL v1.5 (Release date: 2015-10-01)
===================================================================================

Code>
1. dm.ddf: default value of w to be NULL / if(w[1,r]==1 / uo - to +
2. dm.sf: default value of w to be NULL / if(w[1,r]==1 / uo - to +
3. map.soa.ddf: ordering / w is not set to 0 / crop map till p / mk option added
4. map.soa.dea: ordering / sg is not set to ssm / crop map till p / mk option added
5. map.soa.sbm: ordering / sg is not set to ssm / crop map till p / mk option added
6. map.soa.sf: ordering / w is not set to 0 / crop map till p / mk option added

Man>
1. dm.ddf: g as n*(m+s) in example
2. dm.sf: g as n*(m+s) in example


===================================================================================
DJL v1.0 (Release date: 2015-09-30)
===================================================================================

A grand debut on CRAN