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optimizerR 1.1.1

• The Objective object now allows for different types of output structures of the objective function, for which a template can be provided via the $output_template field.

optimizerR 1.1.0

• The Optimizer object has a new method optimize which can be used for minimization and maximization by setting the argument direction.

• In method Objective$initialize(), renamed argument objective -> f.

• In method Objective$initialize(), if target = NULL (the new default), the first argument from f is taken as target argument.

optimizeR 1.0.5

• Removed install_optimizer_packages().

optimizeR 1.0.4

• Fixed bug and added test cases when having fixed arguments that are NULL.

optimizeR 1.0.3

• Fixed bug in creating error message in case of a time out.

• Added checks for objective, initial, and ellipsis argument for the optimizer function.

• Added verbose argument to methods $get_argument() and $remove_argument() of Objective object.

• Added field fixed_arguments to Objective object which returns the names of the fixed arguments.

• Fixed bug in proper backwards compatibility.

optimizeR 1.0.2

• Small bug fixes.

• Backward compatibility with {optimizeR} version 0.3.3.

optimizeR 1.0.1

• Fixed wrong values for "out_value" and "out_parameter" in the optimizer dictionary entry for stats::optim.

optimizeR 1.0.0

• Instead of using S3 classes, we treat optimizers as R6 objects now.

optimizeR 0.3.3

• Removed package start-up message.

• Added the .direction argument to define_optimizer() to specify whether the optimizer minimizes or maximizes.

• Added a dot before the argument names for define_optimizer() to avoid clashes with the ... argument.

• Removed dependency on {glue}.

• Using TestFunctions::TF_ackley instead of own implementation of Ackley function (for the validation).

optimizeR 0.3.2

• Just added package logo and created package website (https://loelschlaeger.de/optimizeR) with the {pkgdown} package. No code changes.

optimizeR 0.3.1

• In define_optimizer(), now validate = FALSE by default.

optimizeR 0.3.0

• Function set_optimizer() was renamed to define_optimizer().

• Inputs for define_optimizer() were renamed for clarity:

  • opt_fun -> optimizer
  • f -> objective
  • p -> initial
  • v -> value
  • z -> parameter
  • out_ign -> output_ignore
  • test_par -> validation_settings

• Elements for input validation_settings have been simplified, please see the documentation of define_optimizer().

• Elements in the output of apply_optimizer() were renamed for clarity:

  • v -> value
  • z -> parameter
  • time -> seconds (now just a numeric)

• Element initial (the starting parameter vector) was added to the output of apply_optimizer().

optimizeR 0.2.0

• Some functions were renamed:

  • optimizeR() -> apply_optimizer()
  • set_optimizer_nlm() -> optimizer_nlm()
  • set_optimizer_optim() -> optimizer_optim()

• Functions is_number(), try_silent(), timed(), and do.call_timed() are no longer exported.

• Function try_silent_timed() was removed.

optimizeR 0.1.0

• Initial CRAN release.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.