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Simulation Framework

A simulation framework for large-scale data generation with applications in the health care domain. The work is a part of the DEMO project http://www.jyu.fi/demo.

Installation

Install the released version of the framework from CRAN (not released yet):

install.packages("Sima")

Alternatively, install the development version from GitHub:

# install.packages("devtools")
devtools::install_github("santikka/Sima")

Usage

A simulator consists of events and an initial population. Events come in two types of R6 class objects, known as manipulation events and accumulation events. Manipulation events modify the status of initial population whereas accumulation events introduce new individuals into the population. The population itself is contained in a data.table and can be either entirely synthetic or based on real data. To construct a simulator, first define the events governing the system of interest and the initial population.

Read vignette("Sima") for more details on how to construct a simulator for your purposes.

Recent changes

Changes from version 0.5.1 to 0.5.2

  • The package no longer depends on ‘doMPI’, ‘foreach’ and ‘iterators’ packages. Now suggests instead.
  • Added explicit support for interventions via the method ‘intervene’.
  • All event parameters are now named.
  • Now supports derived parameters for events, that change their values automatically if the parameter values change.
  • Events can now have their own persistent data.
  • Removed Time class as unnecessary.