I am trying to fit the chi-squared distribution to a set of data using the fitdistr function found in the MASS4 library, the data set is called ONES3, I have loaded it using the command
   
  ONES3<-read.table("ONES3.pdf",header=TRUE,na="NA")
   
  I print out the dataset ONES3 to the screen to make sure it has loaded
   
  Then I try to fit this data using the command fitdistr
   
   fitdistr(ONES3,"chi-squared")
   
  and it returns the comment 
   
  Error in fitdistr(ONES3, "chi-squared") : 'x' must be a non-empty numeric vector

  Can anybody help with this, I imagine it is a common mistake for beginners like myself



audaces fortuna iuvat
       
---------------------------------

	[[alternative HTML version deleted]]

