chain_letter_dendrogram:
  MATLAB/Octave version 4.2.2:
  Construct a dendrogram to analyze the relationship
  among a set of 11 versions of a chain letter.

  Chain letter distance matrix read from "chain_letter_data.txt"

  Graphics saved as "chain_letter_dendrogram.png"

chain_letter_dendrogram:
  Normal end of execution.