r - How to produce a relationship matrix from a dataset? -

June 15, 2010

I want to use R to create relationship matrix from the list of known relationships. For example, with the following dataset:

  John Green Mary Blue Mary Red John Blue    I have to:  
  Green Blue Red John 1 0 Mary 1 1    I could not find how it happened. Thanks in advance for any suggestions.   
 
  You can use  table .    

 


  

















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