xportr (version 0.4.3)

xportr_metadata: Set variable specifications and domain

Description

Sets metadata and/or domain for a dataset in a way that can be accessed by other xportr functions. If used at the start of an xportr pipeline, it removes the need to set metadata and domain at each step individually. For details on the format of the metadata, see the 'Metadata' section for each function in question.

Usage

xportr_metadata(.df, metadata = NULL, domain = NULL, verbose = NULL)

Value

.df dataset with metadata and domain attributes set

Arguments

.df

A data frame of CDISC standard.

metadata

A data frame containing variable level metadata. See 'Metadata' section for details.

domain

Appropriate CDISC dataset name, e.g. ADAE, DM. Used to subset the metadata object.

verbose

The action this function takes when an action is taken on the dataset or function validation finds an issue. See 'Messaging' section for details. Options are 'stop', 'warn', 'message', and 'none'

Examples

metadata <- data.frame(
  dataset = "test",
  variable = c("Subj", "Param", "Val", "NotUsed"),
  type = c("numeric", "character", "numeric", "character"),
  format = NA,
  order = c(1, 3, 4, 2)
)

adlb <- data.frame(
  Subj = as.character(123, 456, 789),
  Different = c("a", "b", "c"),
  Val = c("1", "2", "3"),
  Param = c("param1", "param2", "param3")
)

xportr_metadata(adlb, metadata, "test")

library(magrittr)

adlb %>%
  xportr_metadata(metadata, "test") %>%
  xportr_type() %>%
  xportr_order()