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  <meta name="twitter:title" content="Chapter 28 Activity 13: Area Data V | An Introduction to Spatial Data Analysis and Statistics: A Course in R" />
  
  <meta name="twitter:description" content="This book was created as a resource for teaching applied spatial statistics at McMaster University by Antonio Paez, with support from Anastassios Dardas, Rajveer Ubhi, Megan Coad and Alexis Polidoro. Further testing and refinements are due to John Merrall an