Function to enumerate an exact count of occurrences
exactly(x, query, aperture = duringInterval(eventStarts(-Inf, Inf)))Arguments
- x
the integer counting the number of occurrences
- query
a query object that provides context to the clinical event of interest
- aperture
an eventAperture object that shows the temporal span where the event is to be observed relative to the index event
Value
A criteria that can be used in a cohort definition specifying satisfaction of exactly x instances of a query