Speaking Stata: Species of origin
Nicholas J. Cox 
Department of Geography 
Durham University 
Durham, UK 
[email protected] 
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Abstract.  Counting and measurement scales often have natural origins that
deserve respect in analysis. In other problems, we should feel free to shift or
translate the origin or to rotate a periodic scale. Examples with environmental
data focus on trends in time and seasonal cycles. Several small tips are bundled
together on working with noncalendar years in Stata.
  
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  Nicholas J. Cox
 
  
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  calendar, noncalendar year, graphics, origin, translation, rotation, logit regression, Poisson regression
 
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