1. Biodem::N
    Effective population vector
  2. Biodem::P
    Column stochastic migration matrix
  3. Biodem::S
    Systematic pressure matrix
  4. Biodem::raw.mig
    A raw migration data
  5. Biodem::surnames
    Surname frequency table
    table|10 x 3
  6. Biodem::valley
    Raw marriage data