Event: R6 Class for a Single Clinical Event

The Event class represents a single clinical event of a patient, including the event type, timestamp, and a flexible attribute list for event-specific data.

Details

This class supports both key-based and attribute-based access to event properties.

Public fields

event_type

Character. The type of clinical event (e.g., 'medication', 'diagnosis').

timestamp

POSIXct/character. When the event occurred.

attr_list

Named list. Additional event-specific attributes.

Methods

Public methods

• Event$new()

• Event$get()

• Event$clone()

---

Method new()

Create a new Event instance.

Usage

Event$new(event_type, timestamp, attr_list = list())

Arguments

event_type

Character. Type of the event.

timestamp

POSIXct/character. Timestamp of the event.

attr_list

Named list. (Optional) Additional attributes for the event.

Returns

An Event object.

---

Method get()

Get a value from the event by key.

Usage

Event$get(key)

Arguments

key

Character. The property name ("event_type", "timestamp" or attribute name).

Returns

Value of the property if exists, otherwise error.

---

Method clone()

The objects of this class are cloneable with this method.

Usage

Event$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.