Pedigree file is used for deriving numerator relationship matrix and inbreeding coefficient. Three columns in file are required orderly. The first column is the individual id, the second and third columns are its father and mother id respectively.
NA Na . - NaN NAN nan na N/A n/a <NA>
As the same with phenotype file, any symbol of the list above appears in the pedigree file will be treated as missing. An example file for pedigree is as following:
id father mother Ind2 NA NA Ind5 Ind1 NA Ind11 NA Ind2 Ind17 Ind11 Ind5 Ind22 Ind1 Ind5 Ind45 Ind22 Ind2
The file should be assigned to flag --pedigree.
NOTE
The order of individual id in the first column can be ranked by birth date, but it is not a compulsive requirement, as HIBLUP has the automatic function of sorting and rearrangement on the input pedigree.