News

heemod 0.7.1

Bugfixes

• Fixed an error resulting in incorrect covariance analysis results when relations between values and parameters were negative.

heemod 0.7.0

Breaking changes

• Some plotting arguments changed (e.g. type=>results).

New features

• Added covariance analysis for PSA with type = "cov" plot.
• All plotting functions can now represent multiple strategies with facets.
• CECA plotted on a log scale by default.
• Black & white plots for publications with the bw plot option.
• Remove variables that are not sensitive in DSA with remove_ns.

Backend changes

• Important object structure change (from attributes to lists).
• More systematic use of getter functions.
• More standarized processing of model objects.
• Unit tests rely less on printed results.
• Using new nomenclature in backend functions (model=>strategy).
• base_strategy divided in 3 concepts: central_strategy, root_strategy, noncomparable_strategy.
• Non-heemod versions of discount() throw warnings.

heemod 0.6.0

Breaking changes

• Base model cannot be specified anymore: it is always the least costly model.
• Renamed arguement transition_matrix => transition in define_strategy().

New features

• Parallel computing with use_cluster().
• Compute average values from PSA.

Bugfixes

• Acceptability curve returns probabilities at 0.
• Correctly identify efficiency frontier.
• ICER are computed on the efficiency frontier.

Acknowledments

• Thanks to Matthew Wiener, Zdenek Kabat and Vojtech Filipec for their great contributions to this update.

heemod 0.5.1

Bugfixes

• Added formatR to suggest list.

heemod 0.5.0

Breaking changes

• Some functions were renamed for clarification:
  • define_model() => define_strategy()
  • run_models() => run_model()
  • define_matrix() => define_transition()
  • define_sensitivity() => define_dsa()
  • define_distrib() => define_psa()
  • run_sensitivity() => run_dsa()
  • run_probabilistic() => run_psa()

New features

• Values and probabilities can depend on state time with state_cycle, allowing to reproduce the results of microsimulations.
• define_sensitivity() now accepts any expression as input, and can call references to model parameteres.
• Discount rates can now be specified as parameters (allows for rates to be modified in DSA & PSA).
• Any state value can be plotted.
• Additional output: csv files for many of the tabular results.

Bugfixes

• Edges where P=0 are not plotted anymore for transition matrices.
• There used to be a potential error when you wanted to save output but there had been no psa.

heemod 0.4.0

New features

• update() for heterogeneity analysis and to compute population-level values, with vignette.
• run_models_tabular() to import models from tabular input, with vignette.
• look_up() to look up values from external data.
• Added option to pool female and male mortality rates in WHO data.
• Counting method now defaults to life-table.
• plot_sensitivity() now plots by default the widest bar on top.
• Convenience functions for converting rates to probabilities.
• Models can be run without state values, to compute counts only.
• Much more informative error messages.
• Objects can be converted to the R code to generate them (same idea as dput(), but easier to read).
• New options heemod.verbose and heemod.memotime.
• More informative messages, especially in verbose mode.
• Use WHO data cached localy in case of connection problems.
• New functions: get_counts() and get_init() to get state membership counts.
• Smart sex code conversion for get_who_mr().

Bug fixes

• really fixed problem when the argument to discount() was not defined as a parameter.

Backend changes

• eval_model_newdata(), the function behind resampling and sensitivity analysis now returns list-variables.

Acknowledments

• Thanks to Matthew Wiener, Zdenek Kabat and Vojtech Filipec for their great contributions to this update.

heemod 0.3.3

New features

• Added a vignette to exactly reproduce results from Decision Modelling for Health Economic Evaluation.

Bug fixes

• Fixed problem when argument to discount() was not defined as a parameter.
• Corrected several errors in the vignettes (thanks to Michael Schenkenberg from SBU, Stockholm, Sweden).
• Updated mortality rate tests to reflect GHO database update.

heemod 0.3.2

Bug fixes

• Fix mishandling of matrix index with C in eval_matrix() (thanks to Matthew Wiener).
• Fix problem with upcoming version of tidyr.

heemod 0.3.1

Backend changes

• A single set of parameters is now used for a set of models.

Bug fixes

• Correct error in probabilistic analysis vignette.
• Fix incompatibility with upcoming dplyr update.

heemod 0.3.0

New features

• shiny interface.
• Added support for different counting options.
• get_who_mr() to extract mortality rates from WHO data.

heemod 0.2.0

New features

• Added ability to plot matrix.
• Added framework for probabilistic uncertainty analysis.
• Written vignette for probabilistic and sensitivity analysis.
• Added complement alias for matrix definition.
• run_* functions now output a single table instead of a list of tables.
• Variables corresponding to cost and effect must now be specified in run_models().
• Plotting for sensitivity and probabilistic analysis.

Bug fixes

• added *_ functions.

Removed

• run_model_newdata() cannot run uneval_model anymore.
• Removed need to use define_state_list().

heemod 0.1.0

• Intial CRAN submission.

Reference manual