To cite forestFloor in publications use:

S. H. Welling, H. H. F. Refsgaard, P. B. Brockhoff and L. K. Clemmensen. Forest Floor Visualizations of Random Forests. ArXiv e-prints, June 2016.

Corresponding BibTeX entry:

  @Article{,
    title = {Forest Floor Visualizations of Random Forests},
    author = {Soren Havelund Welling and Hanne Hoffmann Froelund
      Refsgaard and Per Bruun Brockhoff and Line Katrine Harder
      Clemmensen},
    journal = {ArXiv e-prints},
    year = {2016},
    month = {may},
    url = {http://arxiv.org/abs/1605.09196},
    adsnote = {Provided by the SAO/NASA Astrophysics Data System},
  }