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NEWS.md

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simDAG 0.1.0

  • This is the first release of this package

simDAG 0.1.1

Enhancements

  • node() and node_td() now support character vectors in the 'name' argument, allowing easy creation of multiple nodes with the same definition

Bug Fixes

  • There was a bug in the node_time_to_event() function that lead to the immunity_duration parameter being used incorrectly. Since events were still recorded correctly, this was only apparent when using save_states="all". Works correctly now.
  • There was a small bug in dag2matrix() if the dag object contained only root nodes. In this case, a logical matrix was returned. Now it returns the correct numeric matrix.

New Features

  • Added the sim_n_datasets() function to generate multiple datasets from a single dag object, possibly using multicore processing

Documentation

  • Minor changes to documentation pages
  • Minor changes to vignettes

simDAG 0.1.2

Enhancements

  • Print underlying structural equations in summary.DAG() and summary.DAG.node()
  • Added the overlap argument to both long2start_stop() and sim2data() to directly create start-stop data with overlapping durations, as needed for some statistical models
  • Added the target_event and keep_only_first arguments to sim2data() and related functions, to allow direct transformation into model-ready dataset

Bug Fixes

  • Fixed a small bug in input checks of the node_time_to_event() function, which printed an error when not all arguments to prob_fun were supplied, even when these arguments had default values
  • Fixed bug in print.DAG.node() which occurred when a time-to-event node with no parents was supplied
  • Fixed a bug in sim2data() which lead to inconsistent results when event_duration=0 was used in one or more nodes of type "time_to_event" or "competing_events". This made me realize that event durations smaller than 1 make no sense. They are now no longer allowed and the default of the node types has been changed accordingly.
  • Fixed a bug that resulted in errors when interaction terms were being supplied through formula objects of child nodes

New Features

  • Added the as.igraph.DAG() method which extends the generic function as.igraph() to conveniently parse DAG objects to igraph objects
  • Added as.data.table.simDT() and as.data.frame.simDT() for user convenience

Documentation

  • Documentation pages of most nodes now include formal descriptions of the data generation mechanism
  • Re-wrote the documentation page for custom node definition