Dear friends,

   I am using the function correlog in the ncf package to generate univariate 
correlograms of abiotic variables in my study area (nutrients, topographic 
variables, canopy openness).

   The resulting correlation values, however, frequently exceed 1.0. I am 
intrigued by that, since Moran's autocorrelation values vary between -1.0 and 
1.0. Am I setting something wrong?

   Here is my command line:

moranslope = correlog(Long, Lat, Slope, increment = 100, latlon = F, resamp = 
50)

   I set latlon = F despite my x and y values are Latitude and Longitude in 
UTM, because when I set latlon = T values in the x axis become quite larger 
than the ones that make sense to my dataset (up to ca 4000 m).

   Thank you in advance for any help,

   Alexandre

Dr. Alexandre F. Souza 
Professor Adjunto II, Departamento de Ecologia  Universidade Federal do Rio 
Grande do Norte (UFRN)
Caixa Postal 1524, Campus Universitario Lagoa Nova
CEP 59078-970 http://www.docente.ufrn.br/alexsouza  Curriculo: 
lattes.cnpq.br/7844758818522706

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