bad_parents: Determines of the indicated parent can possibly be the parent...
In MarianaLag/Mlag: Tools Related to the Spatial Analysis of Genetic Marker Data

This function takes a data.frame full of parents and offspring and checks to see if the offspring are actually assigned to a compatible adult.

1	bad_parents(df, AdultID = "ID", OffID = "OffID", verbose = FALSE)

`df`	A `data.frame` with identification and locus columns.
`AdultID`	The column header for id of the adults. All adults have unique identification numbers and all offspring have the the same number as the maternal/paternal individual from which they were sampled or are being compared. Default = "ID"
`OffID`	A column indicating offspring identification numbers. By default all adults have OffID=0 (this is how I tell if they are really adults and not offspring), and all offspring have OffID != 0. Default = "OffID"
`verbose`	Print out mismatched parent/offspring pairs.