NEWS
soma 1.2.0 (2022-05-02)
- New T3A and Pareto strategies are now available, using helper functions for
generating options, instead of the (previously unused and now defunct)
"strategy" argument to 'soma()'. See '?soma.options' for details of the new
strategy types, their options and further references.
- Cost function evaluations are now counted and recorded in the 'evaluations'
element of 'soma' objects. This is now used in the 'plot()' method rather
than just migration number.
- It is now possible to initialise the population explicitly, rather than at
random.
- The code now tries much harder to avoid re-evaluating the cost function when
individuals aren't moving in a given migration. This can save a lot of time
when the objective is very expensive to calculate.
- A visual demo is now included with the package: try 'demo(rastrigin)'.
soma 1.1.1 (2014-11-25)
- A short README file has been added to the package.
- The LICENCE file is no longer needed and has been removed.
soma 1.1.0 (2011-07-28)
- A plot function has been added for "soma" objects, which shows the history of
leader cost values during the optimisation.
- The length of the cost history should no longer exceed the maximum number of
migrations specified.
- The package now has a formal namespace.
soma 1.0.0 (2010-12-13)