Append event observations — add_event

Usage

add_event_observation(
  nif,
  sdtm,
  domain,
  testcd = NULL,
  event_filter,
  event_diff = FALSE,
  analyte = NULL,
  parent = NULL,
  metabolite = FALSE,
  cmt = NULL,
  subject_filter = "!ACTARMCD %in% c('SCREENFAIL', 'NOTTRT')",
  observation_filter = "TRUE",
  DTC_field = NULL,
  keep = NULL,
  debug = FALSE,
  silent = NULL
)

Arguments

nif: A nif object.
sdtm: A sdtm object.
domain: The domain code as character.
testcd: The testcode from xxTESTCD where xx is the domain code, as character. Not used if NULL.
event_filter: A filter term to characterize the events to extract, as character.
event_diff: Only retain events where there is a change from the event filter evaluating to TRUE after being FALSE in the previous observation, i.e., apply time differentiation to the observation. As logical. Defaults to FALSE.
analyte: The name for the analyte. Defaults to the 'EV_testcd', if NULL.
parent: The name of the parent analyte for the observation as character. Defaults to the value of 'analyte' if NULL.
metabolite: observation is a metabolite, as logical.
cmt: The compartment for the observation, as numeric.
subject_filter: The filter to be applied to the DM domain, as character.
observation_filter: The filtering to apply to the observation source data, as character.
DTC_field: The field to use as the date-time code for the observation. Defaults to 'xxDTC', with xx the domain name, if NULL.
keep: Columns to keep, as character.
debug: Add debug information, as logical.
silent: Suppress messages, as logical. Defaults to nif_option setting if NULL.

Value

A nif object.