Event Stream Abstraction using Interval Logic
Description
This is the R API for the 'nfer' formalism ().
'nfer' was developed to specify event stream abstractions for spacecraft
telemetry such as the Mars Science Laboratory. Users write rules using
a syntax that borrows heavily from Allen's Temporal Logic that, when
applied to an event stream, construct a hierarchy of temporal intervals
with data. The R API supports loading rules from a file or mining them
from historical data. Traces of events or pools of intervals are
provided as data frames.