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Convert weird values into NA's

check_values.Rd

Convert weird values into NA's

Usage

check_values(
  metabolite_vals,
  special_signs = c("< LOD", "< LLOQ", "> ULOQ", "NA", "∞")
)

Arguments

metabolite_vals

a character vector containing measured metabolite values.

special_signs

a character vector of permitted special signs that should not be converted into NA's. Default to "< LOD","< LLOQ", "> ULOQ", "NA" and "∞". Where ULOQ means upper limit of quantification, LLOQ means lower limit of quantification and LOD means limit o detection.