Training materials
Authors: Hadley Wickham
and Contributors: Anatole Chessel or Daniel Blankenberg or Dr. Bernard de Bono or Gianmauro Cuccuru or Hadley Wickham
Authors: Hadley Wickham
and Contributors: Anatole Chessel or Daniel Blankenberg or Dr. Bernard de Bono or Gianmauro Cuccuru or Hadley Wickham