Eunomia

Eunomia is part of HADES.

Introduction

Eunomia is a standard dataset in the Common Data Model (CDM) for testing and demonstration purposes. Eunomia is used for many of the exercises in the Book of OHDSI. For functions that require schema name, use 'main'.

Features

• Provides a small simulated dataset in the CDM.
• Also includes a subset of the Standardized Vocabularies.
• Interfaces with the DatabaseConnector and SqlRender packages.
• No need to set up a database server. Eunomia runs in your R instance (using SQLite).

Example

library(Eunomia)
connectionDetails <- getEunomiaConnectionDetails()
connection <- connect(connectionDetails)
querySql(connection, "SELECT COUNT(*) FROM person;")
#  COUNT(*)
#1     2694

getTableNames(connection,databaseSchema = 'main')
disconnect(connection)

Technology

Eunomia is an R package containing a SQLite database.

System Requirements

Requires R. Some of the packages required by Eunomia require Java.

Installation

1. See the instructions here for configuring your R environment, including Java.

2. In R, use the following commands to download and install Eunomia:

install.packages("drat")
drat::addRepo("OHDSI")
install.packages("Eunomia")

User Documentation

Documentation can be found on the package website.

PDF versions of the documentation are also available:

• Package manual: Eunomia.pdf

Support

• Developer questions/comments/feedback: OHDSI Forum
• We use the GitHub issue tracker for all bugs/issues/enhancements

License

Eunomia is licensed under Apache License 2.0

Development

Eunomia is being developed in R Studio.

Development status

Ready for use