define_observation: Define analysis observation meta information for ADaM dataset

View source: R/define.R

define_observationR Documentation

Define analysis observation meta information for ADaM dataset

Description

Define analysis observation meta information for ADaM dataset

Usage

define_observation(
  meta,
  name,
  id = "USUBJID",
  group = NULL,
  var = NULL,
  subset = NULL,
  label = NULL,
  ...
)

Arguments

meta

A meta_adam object.

name

A character value of term name. The term name is used as key to link information.

id

A character value of subject identifier variable name in an ADaM dataset.

group

A character vector of group variable names in an ADaM dataset.

var

A character vector of useful variable names in an ADaM dataset.

subset

An expression to identify analysis records. See base::subset().

label

A character value of analysis label.

...

Additional variables.

Value

A metadata object with observation defined.

Examples

plan <- plan(
  analysis = "ae_summary", population = "apat",
  observation = c("wk12", "wk24"), parameter = "any;rel;ser"
)

meta_adam(
  population = r2rtf::r2rtf_adsl,
  observation = r2rtf::r2rtf_adae
) |>
  define_plan(plan = plan) |>
  define_observation(
    name = "wk12",
    group = "TRTA",
    subset = SAFFL == "Y",
    label = "Weeks 0 to 12"
  )

metalite documentation built on Aug. 10, 2023, 5:11 p.m.