simaerep (version 1.0.0)

orivisit: create orivisit object

Description

Internal S3 object, stores lazy reference to original visit data.

Usage

orivisit(
  df_visit,
  call = NULL,
  env = parent.frame(),
  event_names = c("event"),
  col_names = list(study_id = "study_id", site_id = "site_id", patient_id = "patient_id",
    visit = "visit")
)

Value

orivisit object

Arguments

df_visit

Data frame with columns: study_id, site_number, patnum, visit, n_ae.

call

optional, provide call, Default: NULL

env

Optional, provide environment of original visit data. Default: parent.frame().

event_names

vector, contains the event names, default = "event"

col_names

named list, indicate study_id, site_id, patient_id and visit column in df_visit input dataframe. Default: list( study_id = "study_id", site_id = "site_id", patient_id = "patient_id", visit = "visit" )

Details

Saves variable name of original visit data, checks whether it can be retrieved from parent environment and stores summary. Original data can be retrieved using as.data.frame(x).

Examples

df_visit <- sim_test_data_study(
  n_pat = 100,
  n_sites = 5,
  ratio_out = 0.4,
  factor_event_rate = - 0.6
)#'

visit <- orivisit(df_visit)

object.size(df_visit)
object.size(visit)

as.data.frame(visit)