aNCA (version 0.1.0)

apply_labels: Apply Labels to a dataset

Description

This function adds "label" attributes to all columns in a dataset

Usage

apply_labels(data, labels_df = metadata_nca_variables, type = "ADNCA")

Value

The same dataset with label attributes applied to all columns. If a column is not present in the labels list, it will be assigned the name of the col. If label already exists in the original data, it will be preserved.

Arguments

data

The dataset to which labels will be applied.

labels_df

A data frame containing at least the columns "Variable", "Label", and "Dataset".

type

The type variable in labels_df for which the labels are to be applied.

Examples

 data <- data.frame(USUBJID = c(1, 2, 3), AVAL = c(4, 5, 6))
 labels <- data.frame(
   Variable = c("USUBJID", "AVAL"),
   Label = c("Unique Subject Identifier", "Analysis Value"),
   Dataset = c("ADNCA", "ADNCA")
 )
 data <- apply_labels(data, labels, "ADNCA")
 print(attr(data$USUBJID, "label")) # "Unique Subject Identifier"
 print(attr(data$AVAL, "label"))    # "Analysis Value"