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Assess Variable Label Quality

Source: R/usability_indicators.R
assess_label_quality.Rd

Evaluates the quality of variable labels in a metadata data frame. Each variable is checked for label presence, length within the recommended range, and absence of prohibited characters. Results are returned as R4SUB evidence rows with indicator_id = "U-001".

Usage

assess_label_quality(metadata, ctx, config = NULL)

Arguments

metadata

A data frame with at least columns dataset (character), variable (character), and label (character).

ctx

A run context created by r4subcore::r4sub_run_context().

config

A configuration list from usability_config_default(). If NULL the default configuration is used.

Value

A validated evidence tibble (see r4subcore::as_evidence()).

Examples

ctx <- r4subcore::r4sub_run_context(study_id = "STUDY01")
#> ℹ Run context created: "R4S-20260316173057-78yvg5fi"
meta <- data.frame(
  dataset  = c("ADSL", "ADSL", "ADAE"),
  variable = c("USUBJID", "AGE", "AETERM"),
  label    = c("Unique Subject Identifier", "Age", ""),
  stringsAsFactors = FALSE
)
ev <- assess_label_quality(meta, ctx)
#> ✔ Evidence table created: 3 rows
nrow(ev)
#> [1] 3