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  xegaPopulation                                                     News
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Version 1.0.0.1 (2024-03-15)

- CoolingFactory:
        Message text corrected.

Version 1.0.0.2 (2024-04-06)

- ApplyFactory:
        MClapplyHet() added. For tasks with a high variance of 
        execution times.

Version 1.0.0.3 (2024-07-10)

- ApplyFactory:
        PparLapplyHet() added. For tasks with a high variance of 
        execution times.

- ApplyFactory:
        futureLapplyHet() added. For tasks with a high variance of 
        execution times.

Version 1.0.0.4 (2024-08-16)

- xegaPopulation.R function xegaBestInPopulation: 
        - Evaluation of bestGene omitted
          and all fields in solution record now derived
          from bestGene. 
          Rationale: xegaRepEval provides aggregated statistics 
                     with any setting of the evaluation function. 
                     All fields derived from fit are now 
                     mean fitnesses which should approximate 
                     the expected fitness of a gene for 
                     a sufficiently high number of repeated evaluations.

- terminate.R contains:
        terminatedFalse()
        terminatedAbsoluteError()
        terminatedRelativeError()
        TerminationFactory()

        Rationale: Provides a set of standard termination conditions
                   to avoid their reimplementation in each problem 
                   environment which uses them.

- xegaEvalPopulation.R contains:
        xegaEvalPopulation()
        xegaRepEvalPopulation()
        xegaEvalPopulationFactory()
       
        Rationale: Provides an evaluation function for repeated 
                   evaluations of stochastic functions.
         
        xegaLogEvalsPopulation()  Reporting of sigma and obs added.
                                  For assessing stability of mean fitness
                                  of stochastic problems.

Version 1.0.0.5 (2024-10-01)

- terminatePAC()  Terminate if an epsilon-environment of an 
                   estimated upper PAC bound of the optimal solution 
                   is reached.

Version 1.0.0.6 (2025-01-21)

- Examples for futureLapplyHet, PparLapply, and PparLapplyHet fixed 
  by Henrik Bengtsson. 
  
Version 1.0.0.7 (2025-01-23)

- terminateGEQ()  Terminate if the (phenotype) value of a solution 
                  is greater or equal than a threshold.
- terminateLEQ()  Terminate if the (phenotype) value of a solution 
                  is less or equal than a threshold.

Version 1.0.0.8 (2025-01-23)

- asPipeline()          Converts a population into a list of operator pipelines.
- xegaEvalPopulation()  Evaluation of operator pipelines added.
- xegaNextPopulation()  Elitist support for operator pipelines added.

Version 1.0.0.9 (2025-07-26)

- xegaNextPopulation()  Moved updates of lF out to main loop in xegaRun.
                        
Version 1.0.0.10 (2025-08-17)
                        
- xegaConfiguration(): Changes problem and grammar parameters 
                       from positional to named arguments.

Version 1.0.0.11 (2025-10-23)

- asPipeline()         Changed to sequential version.
                       Reason: 1. Pipeline compilation and rmpi. 

Version 1.0.0.12 (2025-12-06)

- asPipelineId()       No pipeline configuration.

- asPipelineG()        Embed pipeline in gene. 

- xegaAsPipelineFactory()  Configuration of pipeline configuration.

Version 1.0.0.13 (2025-04-04)

- Added Pipeline method "NoPipe" to lFxegaGaGene in all examples
  with an evaluation of a population of genes.

Version 1.0.0.14 (2026-04-24)

- Added rmpiLapply as parallel execution model.
- Added pid to output for verbose > 1.
  
Version 1.0.0.15 (2026-05-16)

- Dropped vector of gene indices with equal fitness from 
  xegaSummaryPopulation.

Version 1.0.0.16 (2026-05-22)

- xegaObservePopulation: 
  Number of genes with same fitness added as 9th value 
  in statistics vector. Indicates premature convergence.

