title: How to draw a decision tree in R
body: <p>I want to present (draw) a flow of decisions starting from root continue decision nodes up to 6 layers.
  The decision root (R) will splits into 2 decision options X1 and X2, each of these Xs then divided into 3 new branches of Y1, Y2, and Y3, 
  then Ys divided into 3 branches Z1, Z2, and Z3, and so on.
  Please note that I am not going to classify or doing recursive analysis.
  Any help please?</p>