
pedInvalidDates is a dataframe with 8 rows and 5 columns (ego_id, sire, dam_id, sex, birth_date) representing a full pedigree with values in the birth_date column that are not valid dates.
Source: R/data.R
pedInvalidDates.RdIt is one of six pedigrees (pedDuplicateIds,
pedFemaleSireMaleDam, pedgood,
pedInvalidDates, pedMissingBirth,
pedSameMaleIsSireAndDam) used to
demonstrate error detection by the qcStudbook function.