v0.0.1

Version 0.0.1
Features
fixed_episodes() and rolling_episodes() - Group records into fixed or rolling episodes of events or period of events.
episode_group() - A more comprehensive implementation of fixed_episodes() and rolling_episodes(), with additional features such as user defined case assignment.
record_group() - Multistage deterministic linkage that addresses missing data.
number_line S4 object.
Used to represent a range of numeric values to match using record_group()
Used to represent a period in time to be grouped using fixed_episodes(), rolling_episodes() and episode_group()
Used as the returned output of fixed_episodes() and rolling_episodes()