mockCohort: Generate Synthetic Cohort

In omock: Creation of Mock Observational Medical Outcomes Partnership Common Data Model

Generate Synthetic Cohort

Description

This function generates synthetic cohort data and adds it to a given CDM (Common Data Model) reference. It allows for creating multiple cohorts with specified properties and simulates the frequency of observations for individuals.

Usage

mockCohort(
  cdm,
  name = "cohort",
  numberCohorts = 1,
  cohortName = paste0("cohort_", seq_len(numberCohorts)),
  recordPerson = 1,
  seed = NULL
)

Arguments

cdm	A CDM reference object where the synthetic cohort data will be stored. This object should already include necessary tables such as person and observation_period.
name	A string specifying the name of the table within the CDM where the cohort data will be stored. Defaults to "cohort". This name will be used to reference the new table in the CDM.
numberCohorts	An integer specifying the number of different cohorts to create within the table. Defaults to 1. This parameter allows for the creation of multiple cohorts, each with a unique identifier.
cohortName	A character vector specifying the names of the cohorts to be created. If not provided, default names based on a sequence (e.g., "cohort_1", "cohort_2", ...) will be generated. The length of this vector must match the value of numberCohorts. This parameter provides meaningful names for each cohort.
recordPerson	An integer or a vector of integers specifying the expected number of records per person within each cohort. If a single integer is provided, it applies to all cohorts. If a vector is provided, its length must match the value of numberCohorts. This parameter helps simulate the frequency of observations for individuals in each cohort, allowing for realistic variability in data.
seed	An integer specifying the random seed for reproducibility of the generated data. Setting a seed ensures that the same synthetic data can be generated again, facilitating consistent results across different runs.

Value

A CDM reference object with the mock cohort tables added. The new table will contain synthetic data representing the specified cohorts, each with its own set of observation records.

Examples

library(omock)
cdm <- mockCdmReference() |>
  mockPerson(nPerson = 100) |>
  mockObservationPeriod() |>
  mockCohort(
    name = "omock_example",
    numberCohorts = 2,
    cohortName = c("omock_cohort_1", "omock_cohort_2")
  )

cdm

omock documentation built on Sept. 2, 2025, 1:09 a.m.