Character : Path to file where figures
should be printed
format
format of the output file, should be either "ps"
or "pdf"
burnin
An integer: number of saved iterations to discard for
the representation of the histogram of the chain
References
A spatial statistical model for landscape genetics, Guillot,
Estoup, Mortier, Cosson, Genetics, 2005
Guillot, Mortier, Estoup, Geneland : A program for landscape genetics.
Molecular Ecology Notes, 2005.