Hi all, 
  When using lm to model a response with 8 explanatory variables, one of
the variables is not defined due to "singularities". I have checked the
csv file from which the data come, there are no na's in the dataset,
etc. What should I be looking for in this variable to correct the
problem? 
Thanks for any help. 
 

Robin Williams
Met Office summer intern - Health Forecasting
robin.williams@metoffice.gov.uk 

 

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