Training materials
Authors: Hadley Wickham
and Contributors: Dan Bolser or Dr. Roy Ruddle or Hadley Wickham or Matthias Fahrner or Michael Ball or Vicky Schneider
Authors: Hadley Wickham
and Contributors: Dan Bolser or Dr. Roy Ruddle or Hadley Wickham or Matthias Fahrner or Michael Ball or Vicky Schneider